( CNN ) -- Inter Milan are once again five points behind rivals AC Milan at the top of the Italian Serie A table after crushing Genoa 5-2 at the San Siro on Sunday . But the defending champions had to come from behind to claim the three points , Genoa leading 1-0 at the break after Rodrigo Palacio fired home following good work from Abdoulay Konko . However , Inter were a different side in the second-half and three goals in seven minutes completely turned the match around . The home side leveled in the 50th minute when Giampaolo Mazzini slotted home Maicon 's cross and they took the lead a minute later when Samuel Eto ' o converted a rebound after Goran Pandev 's shot was fumbled by goalkeeper Eduardo . And Eto ' o added his second goal just six minutes later with a superb individual effort , the Cameroon striker 's 18th goal of the season . Goran Pandev made it 4-1 in the 68th minute , after being set-up by Eto ' o and Wesley Sneijder , and Yuto Nagatomo netted his first goal for the club to complete the scoring . Mauro Boselli 's late header proved little more than a consolation goal for the visitors . Meanwhile , third-placed Napoli lost more ground on the top two after being held to a goalless draw by lowly Brescia at the San Paolo , with coach Walter Mazzarri sent to the stands in the first half for arguing with the referee . The Naples side are now eight points off the top and just two points ahead of fourth placed Lazio , who saw off Palermo 2-0 thanks to an early double from Giuseppe Sculli . Ever-improving Udinese are just a point behind Lazio in fifth place after a 1-0 win over bottom side Bari courtesy of Antonio Di Natale 's second-half penalty , his 22nd goal of the season . In other matches , Adrian Mutu scored twice to help Fiorentina to a comfortable 3-0 win over Catania , while an injury time goal from Gaston Ramirez helped Bologna to a 2-2 draw against Cagliari . On Saturday , Gennaro Gattuso scored the only goal as table-toppers Milan saw off struggling Juventus 1-0 , the Rossoneri 's seventh win of 2011 . In Sunday 's two German Bundesliga games , Mainz claimed a superb 4-2 victory at Hamburg to move above defending champions Bayern Munich into fourth place in the table . Meanwhile , struggling Werder Bremen moved out of the bottom three with a vital 3-1 win at Freiburg .
Inter Milan are once again five points behind AC Milan at the top of the Serie A table . The Nerazzurri have won just one game in their last seven outings, and they were beaten 1-0 by Juventus on Saturday. Third-placed Napoli lose more ground on the top two after being held 0-0 by Brescia . Mainz win 4-2 at Hamburg to move above Bayern Munich into fourth in the Bundesliga .