Juventus moved four points clear at the top of Serie A with a 2-1 win over Udinese in a snowy Turin.
Alessandro Matri broke the deadlock for Juventus three minutes before the break when he scored from close-range.
Udinese drew themselves level on 56 minutes when Antonio Floro Flores slotted the ball past Gianluigi Buffon.
Matri had the final word as he grabbed the winner for Juve just past the hour mark to send them clear of AC Milan at the top of the table.
Catania and Parma remain separated by just a point in the Serie A standings after a 1-1 draw at the Stadio Massimino.
Gonzalo Bergessio fired Catania in front on 33 minutes but Francesco Modesto drew Parma level two minutes before the break.