Most of the focus in the Champions League action will be on Group B, where nothing has yet been decided going into the final round of games. Here we run the rule over the games being played in Groups A, B, C and D Tuesday. Group A At Paris, there is nothing riding on this game for PSG, which has already qualified for the last 16 and is certain to finish second in Group A behind Real Madrid. However, Shakhtar needs to match or better Malmo's result in Madrid if it is to take third place and the consolation of a berth in the Europa League last 32. At Madrid, Real Madrid has already sealed qualification for the last 16 as group winner but Rafa Benitez's team needs a convincing performance to appease fans left disgruntled by the recent 4-0 mauling at the hands of Barcelona and the club's disqualification from the Copa del Rey for fielding an ineligible player. ons. Malmo, meanwhile, needs to better Shakhtar's result in the other game. Group B In Germany, the Wolfsburg vs. Manchester United is a huge match at the Volkswagen Arena, with all still to play for in Group B. Wolfsburg is top of the section so needs only draw to go through, while a win will guarantee it top spot. United, in contrast, has to win to be sure of qualifying. Anything less and it will be relying on PSV Eindhoven slipping up in its game. Failing to reach the last 16 is unthinkable for United, which continues to receive criticism for its style of football under Louis van Gaal. In the Netherlands, Dutch champion PSV Eindhoven comes into its final game in third spot but with the two sides above it meeting one another, Philip Cocu's side knows a win against CSKA Moscow at the Philips Stadion will take it through. A draw would also be good enough if Manchester United was to lose in Germany. And yet a CSKA win would see the Russians, who cannot reach the last 16, move above PSV and snatch the Europa League berth that comes with finishing third. Group C In Istanbul, neither Galatasaray nor Astana can reach the last 16 but third place and a Europa League spot will be decided in Istanbul. Galatasaray, which drew 2-2 in Kazakhstan when the sides met in September, need only draw again this time around, while Astana must record a first win in the Champions League proper if it is to prolong its European adventure into 2016. In Lisbon, Benfica and Atletico Madrid are already through, but the important prize of first place in Group C is still up for grabs when Benfica welcomes Atletico to Lisbon. Group D In Manchester, Manchester City faces Borussia Moenchengladbach. City is already through, but must beat Gladbach and hope leader Juventus loses in Spain if it is to finish on top of the section. Such a combination of results seems unlikely given the recent form of these sides. Juventus will be taking on Sevilla in Seville. Juve is already through to the last 16 and a draw in Spain will ensure last season's beaten finalist goes through as group winner. Sevilla, meanwhile, is out but can still finish third if it wins and Borussia Moenchengladbach does not win at Manchester City. That will allow Unai Emery's team to go into the Europa League and try to win that competition for the third year running. — Agencies