PARIS: The first four Champions League groups conclude on Tuesday (tomorrow morning, Beijing time) with a host of major clubs including Real Madrid, AC Milan, Juventus and Bayern Munich still unsure of a place in the knockout phase.

Real are practically assured of qualification and can afford to lose their Group C clash at Marseille by three goals while Milan will progress from the same group with victory at FC Zurich.

Brazilian playmaker Kaka has been ruled out for Real due to a groin injury but Cristiano Ronaldo is expected to start despite being sent off in his side's 4-2 La Liga win over Almeria on Saturday.