VfB Stuttgart avenged Borussia Dortmund’s plundering of their squad with a 5-1 hammering on Sunday after Bundesliga champions Bayer Leverkusen snatched a wild 4-3 win at home to Wolfsburg thanks to Victor Boniface in injury time. Stuttgart, surprise runner-ups last term, lost top scorer Serhou Guirassy and Waldemar Anton to Dortmund in pre-season. But the booed pair were very much on the losing side as the hosts netted twice in the first quarter through Guirassy’s former strike partner Deniz Undav and his replacement Ermedin Demirović. The man from Augsburg has four goals in the first four lea…