• Bayern's Douglas Costa, Bayern’s Kingsley Coman and Bayern's Arturo Vidal, from left, celebrate their side's third goal during a German Bundesliga soccer match between FSV Mainz 05 and Bayern Munich in Mainz, Germany, Saturday, Sept. 26, 2015. (AP Photo/Michael Probst)

    Bayern hosts Dinamo Zagreb, Arsenal at home to Olympiakos

    FRANKFURT, Germany (AP) — Robert Lewandowski was so sure he would score again that he was already wearing the t-shirt marking his achievement. When the Bayern Munich striker struck in Mainz, he lifted his jersey to show off a t-shirt with the number 100 spread across, celebrating his 100th Bundesliga goal.