Barcelona striker Robert Lewandowski is battling to be fit in time for next week’s Champions League semi-final second leg against Inter.Lewandowski is currently out with a hamstring problem, and not really expected back until the Clasico, but he wants to return ahead of schedule.According to Meczykipl’s Tomasz Włodarczyk, Lewandowski is “fighting to return to the pitch for the return match against Inter” and “there is a chance” that he will be available.Diario AS are also reporting that the “club’s medical team’s top priority” is to have Alejandro Balde and Lewandowski in the squad for the match.Balde is expected back at the weekend for Real Valladolid in La Liga, while there’s a hope Lewandowski could get the green light next week and be available as a substitute for Inter.Lewandowski is Barcelona’s top scorer so far this season, but Ferran Torres has been an able deputy and was on target again on Wednesday against Inter.