FSV Mainz 05 is set to receive a six-figure transfer fee from the sale of Karim Onisiwo. According to a report by 'Bild', an agreement has been reached with RB Salzburg for a performance-based payment. A maximum of 750,000 Euros will be transferred from Austria to Germany. Onisiwo, who joined Mainz 05 from SV Mattersburg in 2016, has played 233 official matches for the club, scoring 35 goals and providing 32 assists. The 32-year-old striker is now letting his career wind down in Salzburg.

Bild reports on Karim Onisiwo's transfer from Mainz 05 to RB Salzburg. Karim Onisiwo leaves Mainz 05 as the top scorer in the club's history and transfers to RB Salzburg, competing in the Champions League. The transfer deal negotiated between the two clubs is described as extraordinary. Onisiwo, who had become a supplementary player since the summer, signed a contract in Salzburg until 2026.

Karim Onisiwo is poised to make a return to Austria and join RB Salzburg. The 'Salzburger Nachrichten' reported that the striker is expected to participate in the Champions League team's training sessions, possibly starting as soon as Friday. Despite having a contract with FSV Mainz 05 that extends until 2026, Onisiwo has not been a key player under head coach Bo Henriksen, having played only 204 minutes across eight appearances this season. Onisiwo is aiming to regain his form in Austria, with the potential to replace Karim Konaté, who is sidelined for the season due to a cruciate ligament rupture. The transfer fee to compensate Mainz has not been revealed.