Bayer Leverkusen striker Patrick Schick is doubtful for the regional derby against Cologne on Wednesday, while Florian Wirtz is still unable to make his comeback. “It’s not clear whether he (Schick) can play again, we’ll see tomorrow,” coach Xabi Alonso told a news conference on Tuesday. The striker missed the 5-0 win against Union Berlin at the weekend due to adductor problems. Wirtz, meanwhile, has been sidelined since March due to a serious knee injury. He returned to team training recently but “it’s still to early” for him to play, Alonso said. Asked if Germany coach Hansi Flick should tak…