# Olympiacos 2026 transfer drive – Roca, Diagisi, new talks > Live situation record from CLSTR: https://clstr.news/situations/olympiacos-signing-pablo-mafeo > Updated: 2026-08-01T10:58:33.000Z. Sources: 56. Developments: 26. Olympiacos’ summer preparations continued through mid‑July. After Joël Roca’s arrival in Amsterdam on 17–18 July, the club confirmed his transfer from Girona on 17 July. The 21‑year‑old left‑winger signed a five‑year contract (four‑year term with a one‑year option) worth roughly €5‑6 million, includes a €1.5 million bonus and a 15‑20 % sell‑on clause, and passed his medical exams. The Greek side travelled to the Netherlands for a series of pre‑season friendlies. On 17 July Olympiacos beat Fortuna Sittard 3‑1, with new signing Zota Silva scoring a hat‑trick (20’, 24’, penalty 58’). A day later the team lost 1‑0 to Ajax at the club’s training centre in Amsterdam, the solitary goal coming from Enbartsen in the 80th minute. Coach José Luis Mendilibar used a 4‑2‑3‑1 formation, rotating youth players while keeping key attackers such as George Masouras on the field. The schedule also includes upcoming matches against Anderlecht and AZ Alkmaar as the squad, including debutants Joël Roca and other recent acquisitions, is further tested. During the same period Olympiacos announced the signing of 19‑year‑old midfielder Diagisi from Volos, completing the youngster’s move to the Piraeus club. On 18 July the Greek side submitted a €1.3 million bid to Hamburger SV for right‑back Manolis Saliakas, adding resale‑percentage and performance‑bonus clauses. Mendilibar said the defender would complement Pablo Maféo at right‑back. Transfer activity remained fluid later in July. Negotiations for goalkeeper Konstantinos Zolaki’s move to a Premier League side have stalled, while talks with Sevilla regarding midfielder Osso are currently on hold. Olympiacos reached an agreement to sell Bulgarian defender Stancic to Ludogorets for up to €10 million, but a dispute over an additional €600,000 fee and a doubled salary demand has delayed finalisation. On 21 July the club announced two defensive moves. ## Timeline ### 2026-08-01: Olympiacos Softens Position on Thomas Walkup Transfer Olympiacos is now more open to Thomas Walkup’s transfer after interest from a Dubai club, but no deal is confirmed and price issues persist. 3 sources. https://clstr.news/cluster/olympiacos-softens-position-on-thomas-walkup-transfer ### 2026-07-21: Olympiacos adds two defenders as transfer window heats up Olympiacos loans 20‑year‑old Argyris Liatsikouras to Black Storm and nears a €1.3‑1.5 million deal to bring back defender Manolis Sialikas, who will train in the Netherlands. 6 sources. https://clstr.news/cluster/olympiacos-adds-two-defenders-as-transfer-window-heats-up ### 2026-07-18: Olympiacos eyes major transfers as Dubai pursues Thomas Walkup and Stancic Olympiacos' transfer window includes stalled deals for Zolaki and Osso, a €10 million Stancic sale disputed over manager fees, and Thomas Walkup’s potential summer exit to Dubai with a €3 million buy‑out. 2 sources. https://clstr.news/cluster/olympiacos-eyes-major-transfers-as-dubai-pursues-thomas-walkup-and-stancic ### 2026-07-18: Olympiacos submits €1.3 million bid for right‑back Manolis Saliakas Olympiacos has made a revised €1.3 million offer to Hamburger SV for 29‑year‑old right‑back Manolis Saliakas, aiming to complete the transfer quickly and pair him with Pablo Maféo. 2 sources. https://clstr.news/cluster/olympiacos-submits-13-million-bid-for-rightback-manolis-saliakas ### 2026-07-17: Olympiacos completes €5‑6 million signing of Spanish winger Joel Roca Olympiacos signed 21‑year‑old Spanish winger Joel Roca from Girona for roughly €5‑6 million on a 4+1‑year contract with bonuses and a sell‑on clause. 15 sources. https://clstr.news/cluster/olympiacos-completes-signing-of-spanish-winger-jol-roca ### 2026-07-16: Olympiacos beats Fortuna Sittard 3-1, loses to Ajax 1-0 and completes Diagisi signing Olympiacos beat Fortuna Sittard 3‑1 (Zota Silva hat‑trick), lost 1‑0 to Ajax (Enbartsen goal) and signed 19‑year‑old Diagisi from Volos ahead of upcoming friendlies. 19 sources. https://clstr.news/cluster/olympiacos-signs-jol-roca-and-stages-friendly-against-fortuna-sittard ### 2026-07-14: Olympiacos ramps up transfer activity with targets Joël Rak, Oso and Manolis Saliakas Olympiacos is negotiating signings of Joël Rak, Oso and Manolis Saliakas, while handling contract talks for Wookap, Dorsey and other targets. 2 sources. https://clstr.news/cluster/olympiacos-ramps-up-transfer-activity-with-targets-jol-rak-oso-and-manolis-saliakas ### 2026-07-13: Joël Roca signs five‑year deal with Olympiacos 21‑year‑old Spanish winger Joël Roca will join Olympiacos on a five‑year contract after a productive loan at Mirandés, turning down other offers. 4 sources. https://clstr.news/cluster/olympiacos-nears-57-million-transfer-for-girona-forward-joel-roca ### 2026-07-12: Olympiacos marks 1976 basketball cup triumph as it pursues football signing of Gioel Roca Olympiacos celebrated its 1976 basketball cup win and is nearing the signing of Spanish forward Gioel Roca for the 2024‑25 football season. 5 sources. https://clstr.news/cluster/olympiacos-marks-1976-basketball-cup-triumph-as-it-pursues-football-signing-of-gioel-roca ### 2026-07-11: Olympiacos close to signing Ludogorets striker Petar Stanic Olympiacos is nearing a €9 million deal to sign Ludogorets' striker Petar Stanic, but the transfer is delayed by the player's agent's high salary demands. 3 sources. https://clstr.news/cluster/olympiacos-close-to-signing-ludogorets-striker-petar-stanic ### 2026-07-07: Olympiacos targets Roca and Stanis while preparing for Champions League qualifiers Olympiacos is bolstering its squad with recent signings and is pursuing Argentine forward Roca and Spanish defender Stanis as it prepares in the Netherlands for the Champions League qualifying rounds, with AI预测 2 sources. https://clstr.news/cluster/olympiacos-targets-roca-and-stanis-while-preparing-for-champions-league-qualifiers ### 2026-07-04: Olympiacos completes €6.5 million signing of Swedish defender ZinenTin Smailović Olympiacos signed 22‑year‑old Swedish centre‑back ZinenTin Smailović from Sandefjord for over €6.5 million on a four‑year deal; he joined the Dutch pre‑season camp under José Luis Mendilibar. 12 sources. https://clstr.news/cluster/olympiacos-signs-swedish-defender-zinedin-smajlovi-for-over-65-million ### 2026-07-04: Balša Popovic signs with Olympiacos as goalkeeper Montenegrin keeper Balša Popovic said he’s thrilled to join Olympiacos, calling the club a European giant and praising the new Georgios Karaiskakis stadium as one of Europe’s finest. 2 sources. https://clstr.news/cluster/bala-popovic-signs-with-olympiacos-as-goalkeeper ### 2026-07-03: Olympiacos signs goalkeeper Balša Popović from Red Star Olympiacos has signed Montenegrin keeper Balša Popović from Red Star for €1.5 million on a five‑year deal, with a 15 % future sell‑on clause. 3 sources. https://clstr.news/cluster/olympiacos-signs-goalkeeper-bala-popovi-from-red-star ### 2026-07-03: Olympiacos signs Montenegrin goalkeeper Balsa Popovic Olympiacos has signed Montenegrin goalkeeper Balsa Popovic, 26, from OFK Beograd; the player hailed Olympiacos as a European giant and aims for a domestic double and Champions League play. 2 sources. https://clstr.news/cluster/olympiacos-signs-montenegrin-goalkeeper-balsa-popovic ### 2026-06-28: Olympiakos signs water‑polo star Harkov, nears key football transfers as preseason kicks off Olympiakos signs water‑polo star Harkov, nears football signings of Stancic and Roca, and starts summer preseason at Renti ahead of a Dutch training camp. 4 sources. https://clstr.news/cluster/olympiacos-finalises-signings-of-stancic-and-roca-eyes-douarte-and-caramo ### 2026-06-25: Olympiacos Finalizes Transfer of Montenegrin Goalkeeper Balša Popović Olympiacos completes the €1.5 million transfer of Montenegrin keeper Balša Popović, adding him to their goalkeeping roster. 4 sources. https://clstr.news/cluster/olympiacos-finalises-signing-of-montenegrin-goalkeeper-bala-popovi ### 2026-06-25: Olympiacos close to signing Joël Rock as transfer push continues Olympiacos is close to signing Spanish forward Joël Rock from Girona and continues to hunt defensive and midfield reinforcements. 2 sources. https://clstr.news/cluster/olympiacos-close-to-signing-jol-rock-as-transfer-push-continues ### 2026-06-23: Olympiacos accelerates summer transfer plan targeting Roque and Stanic Olympiacos ramps up its transfer window, targeting Joël Roque, Petar Stanić and other players ahead of summer training and a Netherlands camp. 3 sources. https://clstr.news/cluster/olympiacos-accelerates-summer-transfer-plan-targeting-roque-and-stanic ### 2026-06-20: Olympiacos secures €8 million deal for Serbian midfielder Petar Stanić Olympiacos has agreed to pay €8 million (plus bonuses) to Ludogorets for Serbian midfielder Petar Stanić, a key Europa League scorer, in a high‑value transfer that could affect Ludogorets’s title hopes. 2 sources. https://clstr.news/cluster/olympiacos-secures-8-million-deal-for-serbian-midfielder-petar-stani ### 2026-06-17: Olympiacos signs Spanish‑Argentine right‑back Pablo Maffeo Olympiacos officially signed right‑back Pablo Maffeo from Mallorca after his medical on June 17; the 28‑year‑old brings 211 La Liga appearances to the Greek side. 3 sources. https://clstr.news/cluster/olympiacos-signs-spanishargentine-rightback-pablo-maffeo ### 2026-06-17: Olympiacos secures right‑back Pablo Maffeo as summer transfer nears completion Olympiacos is close to signing Spanish right‑back Pablo Maffeo, who arrived in Athens for his medical, and has made a €6 million offer for Serbian midfielder Petar Stanic. 8 sources. https://clstr.news/cluster/pablo-maffeo-to-join-olympiacos-completing-key-defensive-signing ### 2026-06-17: Olympiacos bolsters squad with multiple signings ahead of new season Olympiacos signs Kostas Fortounis, Dimitris Stournaras and eyes several other players, including defender Pablo Mafeo and Portuguese right‑back Tiago Santos. 2 sources. https://clstr.news/cluster/olympiacos-bolsters-squad-with-multiple-signings-ahead-of-new-season ### 2026-06-08: Olympiacos eyes left‑back Giannoulis and finalises defender Mafeo signing Olympiacos pushes ahead with transfer plans, near‑signing left‑back Giannoulis, defender Mafeo and scouting new midfield options. 2 sources. https://clstr.news/cluster/olympiacos-eyes-leftback-giannoulis-and-finalises-defender-mafeo-signing ### 2026-06-07: Olympiacos completes signing of right‑back Pablo Mafeo Olympiacos secured Spanish right‑back Pablo Mafeo on a 3+1‑year deal worth about €3 million, while also targeting defender Triantafyllos Tsapra and scouting other transfer options. 2 sources. https://clstr.news/cluster/olympiacos-completes-signing-of-rightback-pablo-mafeo ### 2026-06-06: Olympiacos pursue Spanish defender Pablo Mafeo Olympiacos is close to signing 28‑year‑old Spanish defender Pablo Mafeo, a Mallorca player praised by Lionel Messi as his toughest opponent. 2 sources. https://clstr.news/cluster/olympiacos-pursue-spanish-defender-pablo-mafeo --- Cite as: Olympiacos 2026 transfer drive – Roca, Diagisi, new talks. CLSTR, https://clstr.news/situations/olympiacos-signing-pablo-mafeo