Krzysztof Piatek's 57th-minute winner saw AC Milan beat Chievo to claim their fifth straight Serie A win.
Top scorer Mauro Icardi watched from the stands as Inter strengthened their grip on third place in Serie A with a 2-1 win over Sampdoria at San Siro.
Cristiano Ronaldo had a hand in all three goals as Juventus cruised to a 3-0 win at Sassuolo to take their lead at the top of Serie A into double figures.
Inter Milan players left the field to deafening jeers from their own fans after they lost 1-0 to relegation-threatened Bologna in Serie A on Sunday.
Two goals in three minutes helped Genoa secure a 3-1 victory over struggling Empoli in Serie A on Monday.
Krzysztof Piatek has joined AC Milan from Genoa on a four-and-a-half year deal, it has been confirmed.
AC Milan and Genoa have agreed a £31m deal for the transfer of Poland striker Krzysztof Piatek, according to Sky in Italy.
Fabio Borini and Suso scored late as AC Milan reclaimed fourth spot in Serie A with a 2-0 win at Genoa.
Gonzalo Higuain's loan to Chelsea has moved a step closer with AC Milan and Genoa meeting on Tuesday to finalise the sale of Krzysztof Piatek, according to Sky in Italy.
Genoa president Enrico Preziosi has played down suggestions Krzysztof Piatek could join Chelsea in January.
Cristiano Ronaldo scored twice as Juventus sealed a dramatic 2-1 win over Sampdoria.
Cristiano Ronaldo came off the bench to score a late equaliser as 10-man Juventus salvaged a 2-2 draw at Atalanta.
Sassuolo and Fiorentina had to settle for a point each from a thrilling 3-3 draw, while AC Milan and Torino played out a goalless draw.
Franck Kessie fired AC Milan to back-to-back wins and up to fourth place in Serie A as his late penalty downed Parma 2-1 at San Siro.
Napoli lost further ground on Serie A leaders Juventus after they could only manage a goalless draw at home to bottom club Chievo.
All the latest transfer news from around Europe, as Ivan Perisic says he dreams of playing in the Premier League.
Napoli overcame a torrential downpour to come from behind and win 2-1 at Genoa in Serie A on Saturday.
Our friends at Football Whispers have scoured the back pages to bring you the latest gossip from the continent.
Paulo Dybala scored after 44 seconds for Juventus but they were made to struggle in a 3-1 win over Cagliari on Saturday.
Alessio Romagnoli scored an injury-time winner as AC Milan moved into the top four in Serie A with a 2-1 victory over Genoa.