BERLIN: Axel Witsel scored late to give Borussia Dortmund a bad-tempered 1-0 win at Mainz on Wednesday in their postponed Bundesliga game to cut the gap to leader Bayern Munich to four points. American forward Gio Reyna, who came on in the 69th minute as a substitute, set up the winner by floating a free kick to the far post for Witsel to score in the 87th. But the game itself