Arsenal have a mountain to climb in their bid of qualifying for the knock out rounds of the Champions League after losing 5 - 1 to German champions Bayern Munich.<br /><br /><b>David Alaba</b> put in a strong outing in defense and scored the Bundesliga side&rsquo;s third goal in the 44th minute, with a curling shot from outside the box before setting up Robben for the fourth goal.<br /><br />While the Austria international went the distance, manager Arsene Wenger handed Super Eagles invitee <b>Alex Iwobi&nbsp;</b> his Champions League debut after he came on in the 84th minute.<br /><br />Out - of - favour Super Eagles forward <b>Brown Ideye</b> played the entirety of Olympiakos 2 - 1 win against Dinamo Zagreb at Stadio Georgios Karaisk&aacute;ki. He logged an assist in the 65th minute.<br /><br /><b>Nosa Igiebor</b> played his first game for about two months after he came off the bench eight minutes from time in Maccabi Tel Aviv&rsquo;s 3 - 1 loss at home to Porto.<br /><br />Super Eagles winger <b>Moses Simon</b> went unused in Gent&rsquo;s surprise 1 - 0 win over Valencia. <br /><br />Finally at Stamford Bridge, <b>John Obi Mikel </b>was a spectator in Chelsea&rsquo;s 2 - 1 win against Dynamo Kiev.<br /><br />