Two goals from Joaquin Correa put AC Milan on the chopping block as Lazio dealt a hammer blow to the Rossoneri's Champions League hopes with a 3-0 win in Rome.
Correa scored early in the game which immediately put Milan on the back foot, and as the away side committed men forward they were ripe for the picking.
After the break Correa led a Lazio counter attack and took the ball past Fikayo Tomori before blasting past Gianluigi Donnarumma at his near post. Ciro Immobile grabbed Lazio's third late on to seal the points.
The result drops Milan from second place to fifth, and out of the Champions League spots, as their season crumbles at the final hurdle. The Rossoneri face Benevento next before a crunch tie away to Juventus in two weeks with both sides in dire straits.
Atalanta are second on 68 points, 11 behind runaway leaders and champions elect Inter, with Napoli, Juventus and Milan on 66 points. Lazio are in sixth position on 61 points, but have a game in hand against lowly Torino.
It took just 77 seconds for Correa to open the scoring at the Stadio Olimpico on Monday evening, after he played a nice one-two with Immobile before rounding the goalkeeper and slotting home.
Manuel Lazzari thought he had doubled Lazio's lead midway through the first half, but after he finished off the Biancocelesti counter, the goal was ruled out by VAR.
It mattered not as 51 minutes in, another break from the home side saw Correa burst into the penalty area and fire the ball into the near top corner.
Immobile hit the post with a delightful chip with 10 minutes to play, but Lazzari served him an easy ball which he smashed home late on.