Nigerian striker Chinedu Obasi says he wants to leave German side Hoffenhiem after four years at the club.
Schalke are reported to be interested in signing the attacker to replace Peru's Jefferson Farfan, who suffered a serious knee injury last month.
Obasi, 25, is under contract with Hoffenheim until 2014.
But after a bout of injuries this season is no longer first choice at Hoffenheim while Ryan Babbel has played all in all 16 league matches so far.
"I like Hoffenheim, they allowed me to progress, but I think it is time to change," Obasi told Bild.
Farfan suffered a knee injury in November playing for Peru against Ecuador and is expected to be out until at least January.
With the transfer window set to open in January, Schalke are keen on boosting their squad.
German Cup holders Schalke are currently third in the German league and are in the Round of 16 in the Europa League.