AC Milan moved top of Serie A on Saturday after surviving a late penalty controversy to beat Lazio 1-0.
Italian champions Napoli came unstuck at Bologna on Sunday, losing 2-0 to cede the Serie A summit to Inter Milan who downed Lazio by the same scoreline.
When Napoli won the title in 2023 it followed up the championship with a highly disappointing 10th place finish.
Italian Serie A side Lazio have brought back Romano Floriani Mussolini back to the club following a successful campaign at Serie B club Juve Stabia
Pope Francis died at his home in the Vatican on Monday aged 88 after suffering a stroke.
Roma are seventh, two points behind sixth-placed Lazio with seven matches remaining in the season.
Atalanta were defeated 1-0 by fellow Champions League hopefuls Lazio.
Florian Thauvin put Udinese ahead after 22 minutes but Alessio Romagnoli earned the draw ten minutes later.
AC Milan plunged deeper into crisis on Sunday after Pedro's penalty in the eighth minute of stoppage time condemned the seven-time European champions to a 2-1 home defeat to Lazio
Napoli currently lead Inter Milan by two points, but the latter have a game in hand.
Manchester United, unbeaten in eight games in the tournament, finished in third place and Tottenham came fourth, ensuring the Premier League clubs both avoided the Europa League play-off round.
Lazio on Tuesday sacked the club doctor responsible for performing penis surgery on their fascist-sympathising falconer, who was dismissed the day before for publishing the results of the operation online
Roma triumphed 2-0 against local rivals Lazio on Sunday to give Claudio Ranieri his biggest win since the veteran coach took charge of his boyhood club for the third time.
Atalanta kept hold of top spot in Serie A on Saturday after escaping Lazio with a 1-1 draw which kept Inter Milan at bay but ended their club-record league winning streak at 11 matches.
Napoli conceded top spot in Serie A to red-hot Atalanta on Sunday after falling to a 1-0 home defeat to Lazio and dropping to two points from the summit.
Napoli were knocked out of the Italian Cup by Lazio on Thursday after Tijjani Noslin fired a hat-trick to hand the Serie A leaders a 3-1 last-16 defeat in Rome.
Atalanta take on AC Milan on Friday night with Serie A's top spot in their sights.
Athletic Bilbao cruised to a 3-0 win over Elfsborg on Thursday to move level on points with Lazio at the top of the Europa League table, while Chelsea made it four wins from four in the Conference League.