Mark van Bommel was sent off on his AC Milan league debut but the Serie A football leaders still claimed the three points in a 2-nil win at Catania.
Despite playing most of the second half with 10 men, goals from Robinho and Zlatan Ibrahimovic sent Milan seven points clear at the top ahead of tomorrow's matches.
The Czech forward Libor Kozak grabbed both goals as Lazio beat Fiorentina 2-nil to keep their slim title hopes alive.
They trail Milan by seven points and provisionally moved up to third ahead of tomorrow's matches.
