Napoli have moved back into the Champions League places in Serie A by beating lowly Torino 2-0 while Lazio thumped AC Milan 3-0 to close in on a top-four spot.
Joaquin Correa scored twice for Lazio at fortress Stadio Olimpico as former leaders Milan dropped to fifth.
Correa scored his first after just 77 seconds and doubled his tally in the 51st minute.
Ciro Immobile completed the scoring three minutes from time.
Lazio closed to within five points of fourth place and the final Champions League berth, having played a match less than the teams above them.
Napoli, who earlier on Sunday beat relegation-threatened Torino, have 66 points to be level with Juventus and Milan.
Head-to-head record is the first deciding factor in Serie A, followed by goal difference.
Second-place Atalanta are on 68 points, 11 adrift of Inter Milan.
Milan were without top scorer Zlatan Ibrahimovic and got off to the worst possible start when Correa played a quick one-two with Immobile, rounded Gianluigi Donnarumma and deposited into the empty net.
It was Lazio's quickest goal in Serie A since statistics supplier Opta started collecting that data in 2004.
Lazio doubled their lead six minutes after the break when Correa burst into the area, rode an attempt at a tackle from Milan defender Fikayo Tomori and blasted his shot home.
Immobile's lob hit the post 10 minutes from time but the Italy forward got on the scoresheet seven minutes later.
Napoli could have scored more in a dominant victory over hosts Torino.
Two goals in as many minutes from Tiemoue Bakayoko and Victor Osimhen had the visitors firmly in control by halftime.
The visitors also hit the post twice, while Torino midfielder Rolando Mandragora was sent off four minutes from time for a second yellow card.
Torino remained above the relegation zone thanks only to a better head-to-head record over 18th-placed Benevento, although they have played a match less than the teams around it.
Napoli got off to a great start when Bakayoko curled a stunning strike into the far bottom corner from 20 yards out.
The lead was doubled after a rapid counter attack.
Osimhen sprinted from just inside his own half and his effort was deflected past Torino goalkeeper Salvatore Sirigu.