With the World Cup approaching, German football federation (DFB) director Oliver Bierhoff is watching the remaining games until the start of the tournament with apprehension as injuries are piling up. “There is always fear that important players could drop out at short notice and no longer have time to be fit for the tournament,” Bierhoff told dpa on Wednesday. Just on Tuesday, Borussia Mönchengladbach midfielder Jonas Hofmann became doubtful for the tournament in Qatar after suffering an injury on his left shoulder during the German Cup defeat to Darmstadt. Gladbach coach Daniel Farke spoke o…