Arsenal boss Arsene Wenger is a man under pressure after the Gunners' worst start to a Premier League campaign during his tenure. The Champions League, in many ways, has offered some kind of respite to Arsenal, who are through to the knockout stages for the 13th consecutive year.
Wenger has made a bit of a gamble by leaving eight senior players behind for the trip to Olympiakos, with top spot in Group B still up for grabs. The bookies make Olympiakos favourites, but in spite of all their recent troubles, back the Gunners to sneak a 2-1 win at odds of 11/1 with bet365.
Meanwhile, a first Champions League win of the season may come too late for Mancini's men, with even three points not necessarily enough to secure a place in the Europa League. That said, Dortmund, a side of unusual attacking energy and invention, can cause City significant problems, especially in the second half. The Bundesliga side to be drawing at half-time and winning at full-time is 4/1 with bet365.