Serie A: Cristiano Ronaldo's brace helps Juventus beat Cagliari; Lazio edge Crotone on Ciro Immobile's return
Lazio also won 2-0 under torrential rain at Crotone, but Atalanta were held 0-0 at promoted Spezia days before their Champions League trip to Liverpool.
The FIGC said in a statement they had "opened an investigation into Lazio to ascertain any violations of the health protocols aimed at containing the Covid-19 epidemic".
Lazio fielded a depleted team in Brugge in the Champions League on Wednesday and drew 1-1 without last season's top European scorer Ciro Immobile and midfielders Luis Alberto, Manuel Lazzari, Lucas Leiva and Djavan Anderson.
Serie A: Atalanta ease past Cagliari with a 5-2 victory; Inter Milan settle for 1-1 draw against Lazio
Inter Milan dropped their first points of the season as they drew 1-1 against Lazio in Serie A while Atalanta made it three wins out of three with a 5-2 victory over Cagliari.
In the Serie A season that ended early August, Immobile scored 36 goals to match Gonzalo Higuain’s Italian league record.
Serie A: Lazio's Ciro Immobile equals goal-scoring record; Inter Milan seal second spot after beating Atalanta
Inter Milan sealed second place with a 2-0 win over high-scoring Atalanta, who hadn’t been held to a clean sheet since November.
Serie A: Ciro Immobile scores, taking tally to 35 goals, as Lazio beats Brescia 2-0 in race for second spot
Immobile is just one off equaling the all-time record of 36 goals in a Serie A season, set by Gonzalo Higuain when he was at Napoli in 2015-16.
Serie A: Cristiano Ronaldo shines again as Juventus clinch ninth straight title with win over Sampdoria
It was Juventus’ first title under coach Maurizio Sarri, who brought in a completely new system.
Juventus remained six points clear of second-place Atalanta and can secure the title with a win over Sampdoria on Sunday.
Ciro Immobile and Felipe Caicedo, who between them have provided 37 of second-placed Lazio’s 66 Serie A goals this season, are suspended due to an accumulation of yellow cards.
Serie A: Cristiano Ronaldo's rocket powers Juventus to 3-1 win at Genoa, restores four point lead at top of standings
Since losing the Italian Cup final to Napoli in a penalty shootout, Juventus have won all three of its league matches in the restart.
Lazio's Luis Alberto struck seven minutes from time against Fiorentina to cut the gap to league leader Juventus back to four points.
Lazio, therefore, moved two points ahead of idle Juventus and eight ahead of Inter, which also had a game postponed last weekend
Serie A: Ciro Immobile scores as rampant Lazio beat Genoa to stay hot on trail of leaders Juventus, AS Roma end losing run
Lazio, on 59 points from 25 games, stayed one point behind the Turin side as they equalled their points tally for the whole of last season, when they finished eighth, and extended their unbeaten run to 20 league games, including 16 wins
Serie A: Lazio beat Inter Milan to boost hope for first title in 20 years; Juventus score routine win over Brescia
Lazio's hopes of winning a first Serie A trophy in 20 years are very much alive after they came from behind to beat title rival Inter Milan 2-1 on Sunday.
Serie A: Ronaldo extends scoring streak as Juventus thump Fiorentina; Romelu Lukaku's brace brings Inter Milan back on track
Cristiano Ronaldo converted two penalties to tie a club record by scoring for a ninth straight game as Serie A leader Juventus bounced back from a rare loss with a 3-0 victory over Fiorentina
Napoli alleviated their crisis when an early solo goal by Lorenzo Insigne gave them a 1-0 win over holders Lazio in their Coppa Italia quarter-final on Tuesday, which also featured a bizarre penalty miss by Ciro Immobile for the losers.
Serie A: Ciro Immobile's treble helps Lazio crush Sampdoria; Dusan Vlahovic's stunner guides Fiorentina to win over Napoli
Ciro Immobile scored a hat trick on Saturday to help Lazio crush Sampdoria 5-1 as Simone Inzaghi’s side continued to look like a genuine title contender.
Serie A: Zlatan Ibrahimovic scores in first start to set up victory for AC Milan; Inter held by Atalanta
Zlatan Ibrahimović is back. The 38-year-old scored in his first start back at AC Milan to end the Rossoneri’s goalless run and help them to a 2-0 win at Cagliari in Serie A on Saturday.