Here we look ahead to Wednesday's Champions League action with Arsenal vs. Paris Saint-Germain the plum tie while Barcelona, Manchester City and Bayern Munich all face challenging away games. Arsenal faces Paris Saint-Germain in London in Group A. The Gunners will be out to put one over the French champion, which it held 1-1 in Paris, as both struggle for top spot in Group A, the pair having already booked passage to the knockout phase. The Londoners could look to Olivier Giroud, who rescued a point from the bench at Old Trafford, to spearhead their attack after Alexis Sanchez played through hamstring trouble. PSG warmed up for Wednesday with a fourth straight win, 2-0 over Nantes, as it chases down French leader Nice. Ludogorets is up against Basel at Sofia in the other group encounter. In Group B, Napoli faces Dynamo Kiev at Naples. Napoli might just about top the group but it is locked in a three-way struggle with Benfica and Besiktas for two places in the last 16. It came from behind to see off Kiev in Ukraine in the reverse fixture and badly needs three points here. Besiktas will play Benfica in Istanbul. Top spot is still up for grabs in Group C as Barcelona, two points clear of Manchester City, travels to a Celtic side it squashed 7-0 at the Camp Nou. A win for Lionel Messi and Co. - he is set to return after a sickness bug at the weekend - will see the Spanish champion into the last 16, though a draw might also do it depending on the other game, where Borussia Moenchengladbach is up against Manchester City in Germany. Victory in Germany for Pep Guardiola's side will see it into the next round. Five-time European champion Bayern heads to Russia's Rostov for its Group D clash licking its wounds after being knocked from the top of the Bundesliga. Its 1-0 defeat at Dortmund Saturday allowed RB Leipzig to finish the weekend top of the German league table. Bayern is already into the last 16 but needs a win at Rostov to stay in touch with group leader Atletico Madrid, which it hosts on Dec. 6 for a potential top-spot decider. Atletico Madrid plays PSV Eindhoven at Madrid in the other group outing.
