# KSW heavyweight championship main event change

> Live situation record from CLSTR: https://clstr.news/situations/ksw-heavyweight-championship-main-event-change
> Updated: 2026-08-31T09:33:15.000Z. Sources: 4. Developments: 2.

Heavyweight champion Phil De Fries has withdrawn from his scheduled rematch against Stefan Vojcak at the KSW 121 event in Liberec, Czech Republic. De Fries cited a cervical spine injury affecting his neck and chest as the reason for his withdrawal, though he expressed optimism regarding a return to competition in several weeks.

In response to the injury, KSW organizers have restructured the main event to include an interim heavyweight championship bout. Stefan Vojcak, the number one ranked heavyweight, will now face Marcin Wójcik, the number three ranked fighter, to compete for the temporary title.

## Timeline

### 2026-08-31: KSW changes heavyweight main event due to Phil De Fries injury

Heavyweight champion Phil De Fries has withdrawn from KSW 121 in Liberec due to a neck injury. Stefan Vojčák will now fight Marcin Wójcik for an interim heavyweight title.

3 sources. https://clstr.news/cluster/ksw-changes-heavyweight-main-event-due-to-phil-de-fries-injury

### 2026-08-28: Phil De Fries withdraws from KSW 121 due to injury

Phil De Fries has withdrawn from KSW 121 due to a neck injury. Marcin Wójcik will replace him to face Stefan Vojcak for the temporary heavyweight championship belt in Liberec.

2 sources. https://clstr.news/cluster/phil-de-fries-withdraws-from-ksw-121-due-to-injury

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Cite as: KSW heavyweight championship main event change. CLSTR, https://clstr.news/situations/ksw-heavyweight-championship-main-event-change