Ronnie and The Situation got into a MAJOR fist fight with each other last night in Italy ... TMZ has learned -- and based on the post-brawl pictures ... the Sitch got his ass kicked.
The two arrived separately back to their apartment hours ago -- Situation has red marks covering his face around his left eye. Ronnie's knuckles were torn up and bleeding.
Details around the fight are still unclear -- but big surprise ... we're told it all began with a blowout between Ronnie and Sammi.
Could MTV finally be trying to keep a Situation quiet?
In response to a report that roommates Ronnie Magro kicked Mike "The Situation" Sorrentino's butt in a not-so-friendly brawl between Jersey Shore roommates, the network will only acknowledge that the Sitch needed medical attention last night in Italy.
Judging by the state of his face today, that part isn't hard to believe.
"Monday evening, Mike received medical attention after an accidental injury in the house," MTV said in a statement to E! News. "He was treated and is now at home with the rest of the cast."
Including Ronnie, who, in case you hadn't noticed over the course of three seasons, has a bit of a temper.
While Mike was sporting a shiner, TMZ snapped photos of Ronnie's knicked-up knuckles. Coincedence?
As if kickin' Situation's ass wasn't bad enough, Ronnie then mocked him by stealing his trademark d-bag move of lifting his shirt and flashing his abs to fans on the street in Italy yesterday.
As TMZ reported yesterday, Ronnie beat up The Situation the other day -- leaving Sitch with red marks all over his face and left eye.
GTL now stands for gym, tan, laugh at Sitch.