Form: Rarely have seven-time European champions Milan been bigger outsiders coming into a continental tie. The arrival of Dutchman Clarence Seedorf as coach has not engendered a revival in their fortunes and they go into the second leg on the back of a 1-0 defeat away at Udinese. Atletico are enjoying a superb season. Diego Simeone's side, who dropped just two points en route to winning Group H, are pushing Barcelona and Real Madrid hard in the Spanish title race. They beat Celta Vigo 2-0 away on Saturday and remain just three points off leaders Real. They have won 15 of their last 16 home games in UEFA competitions while Milan have gone out to Spanish opposition, Barcelona, in the Champions League in the last two seasons. Atletico are chasing their first appearance in the Champions League quarter-finals since 1997, that team having included Simeone.

Coaches:

AC Milan - Clarence Seedorf (NED) age -- 37

Atletico Madrid - Diego Simeone (ARG) age -- 43

Leading scorers in all competitions:

AC Milan - Mario Balotelli (14 goals)

Atletico Madrid - Diego Costa (27 goals)

Domestic league performance

AC Milan - 10th in Serie A, 17 points adrift of the third and final Champions League qualifying spot for next season

Atletico Madrid - Second in the table

Group stage performance

AC Milan - second in Group H behind Barcelona

Atletico Madrid - winners of Group G ahead of Zenit St Petersburg

European Cup/Champions League best performances:

AC Milan - winners 1963, 1969, 1989, 1990, 1994, 2003, 2007

Atletico Madrid - runners-up 1974

Other honours:

AC Milan - 18 x Italian champions, 5 x Italian Cup winners, 2 x Cup Winners' Cup winners, 3 x Intercontinental Cup winners, 1 x Club World Cup winners

Atletico Madrid - 9 x Spanish champions, 10 x Copa del Rey winners, 2 x Europa League winners, 1 x Cup Winners' Cup winners, 1 x Intercontinental Cup winners

Previous meetings: Only one as Atletico won first leg 1-0 in Milan