Factfile on Olympiakos and Manchester United ahead of the Champions League last 16, first leg tie between the clubs on Tuesday:

Form: Given their very high standards, Manchester United are enduring a torrid season under Alex Ferguson's replacement David Moyes. Cut adrift of the top four in the Premier League, a return to next season's Champions League seems highly unlikely unless they can win the trophy for the fourth time in Lisbon in May. At least, after winning their group ahead of a limited Bayer Leverkusen side, they appear to have been handed a reasonably kind draw in the last 16. Olympiakos are unbeaten in their domestic league and seem certain to win yet another Greek title, but this is a big step up for a side that has lost top scorer Kostantinos Mitroglou, who was sold to Fulham in January.

Coaches:

Olympiakos - Michel (ESP) -- 50 yrs

Manchester United - David Moyes (SCO) -- 50 yrs

Leading scorers in all competitions

Olympiakos - Konstantinos Mitroglou (17 goals), Javier Saviola (13 goals)

Manchester United - Robin van Persie (13 goals)

Domestic league performance:

Olympiakos - Top of the Greek Super League, 20 points clear of PAOK having dropped just four points all season

Manchester United - Seventh in the Premier League, 11 points adrift of the top four

Group stage performances:

Olympiakos - second in Group C behind Paris Saint-Germain

Manchester United - winners of Group A ahead of Bayer Leverkusen

European Cup/Champions League best performances:

Olympiakos - quarter-finals 1998/99

Manchester United - winners 1968, 1999, 2008

Other honours:

Olympiakos - 40 x Greek champions, 26 x Greek Cup winners

Manchester United - 20 x English champions, 11 x FA Cup winners, 4 x League Cup winners, 1 x Cup Winners' Cup winners, 1 x European Super Cup winners, 1 x Intercontinental Cup winners, 1 x Club World Cup winners

Previous meetings:

Olympiakos 0-2 Manchester United - 2001/02 first group stage

Manchester United 3-0 Olympiakos - 2001/02 first group stage

Manchester United 4-0 Olympiakos - 2002/03 first group stage

Olympiakos 2-3 Manchester United - 2002/03 first group stage