Factfile on Real Madrid and Schalke 04 ahead of the Champions League last 16, second leg tie between the clubs on Tuesday:

Form: Real's below par performance in their away win over struggling Malaga on Saturday still saw them win 1-0 and extend their unbeaten run to 30. Schalke travel more in hope than expectation after the 6-1 hammering in the first leg but at least Dutch striker Klaas-Jan Huntelaar is in fine form having scored five goals in his last two Bundesliga appearances -- including a double in Friday's 2-1 win over Augsburg that saw them move up to third in the table -- and will want to make a point against a team with whom he never produced his best.

Coaches:

Real Madrid - Carlo Ancelotti (ITA) -- 54 yrs

Schalke - Jens Keller (GER) -- 43 yrs

Leading scorers in all competitions:

Real Madrid - Cristiano Ronaldo (39 goals)

Schalke - Jefferson Farfan, Klaas-Jan Huntelaar (both 11 goals)

Domestic league performance:

Real Madrid - Top of La Liga, three points clear of Atletico Madrid and four ahead of Barcelona

Schalke - Third in the Bundesliga, 24 points off leaders Bayern Munich but on course for another Champions League campaign next season.

Group stage performances:

Real Madrid - Winners of Group B ahead of Galatasaray

Schalke - Second in Group E behind Chelsea

European Cup/Champions League best performances:

Real Madrid - winners 1956, 1957, 1958, 1959, 1960, 1966, 1998, 2000, 2002

Schalke - semi-finals 2010/11

Other honours:

Real Madrid - 32 x Spanish champions, 18 x Copa del Rey winners, 2 x UEFA Cup winners, 1 x European Super Cup winners, 3 x Intercontinental Cup winners

Schalke - 7 x German champions (none in Bundesliga era), 5 x German Cup winners, 1 x UEFA Cup winners

Previous meetings:

Schalke 1 Real Madrid 6 -- 2013/14 Champions League last 16 first leg