Serie A roundup
Napoli joins Juventus atop Serie A
February 2, 2013
By Press Association
Hamsik grabbed a 31st-minute opener, turning in Camilo Zuniga's wayward shot, before his low cross set up a Paolo Cannavaro tap-in just before halftime.
Catania was vastly improved after the break, and had a Gonzalo Bergessio header ruled out for a foul, but the hosts held on to draw level with Juve ahead of the champions' trip to Chievo on Sunday.