The 34-year-old France international scored 44 goals for Real Madrid last season.
Leroy Sane and Marko Arnautovic are among the names being linked with Manchester United.
Lille also trail leaders Paris St Germain on goal difference alone after beating Auxerre 4-1.
The £51million summer signing from Borussia Dortmund scored what are likely to be the first of many goals for the champions.