Surprise package Atalanta came from behind to beat Lazio 3-1 on Rome on Sunday and tighten their grip on fourth place in Serie A, which is good for qualification for next season's Champions League.
Marco Parolo put the hosts ahead in the early stages, but the Bergamo side surged back with strikes by Duvan Zapata and Timothy Castagne and an own goal by Lazio's Wallace.
Atalanta have 62 points with three games to go, three points more than fifth-placed AS Roma, who were held 1-1 at Genoa.
Juventus, who have already sealed their eighth consecutive Serie A title, drew 1-1 with city rivals Torino, who are sixth, on Friday. Napoli made sure they will finish second with a late comeback that gave them a 2-1 win over Cagliari.
Inter, however, risk losing third place after a 0-0 draw at Udinese which leaves them just one point ahead of Atalanta.
Seventh-placed AC Milan can pull level on points with Roma if they end a spell of poor form by beating Bologna at home later on Monday.
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