Ventimiglia furthered explained that he had surgery for "some torn tendons," but is "recovering."
"You gotta think of a good story [about your arm]," Fallon advised. "Maybe something dangerous."
Ventimiglia shared that his sling has become a great "catch-all" since he started wearing it. "Like, I got my phone in it," he revealed, before pulling out his wallet, tissues, a banana, tooth floss and a hanky. "I feel like an older gal that puts her phone in her bra. I get very comfortable."
Fallon also had his mind blown when Ventimiglia gifted him with a pin of his Gilmore Girls character, Jess. When the late-night host gushed over being "Team Jess" and thinking he was the only guy for Rory, the TV star posed a thought-provoking question.
"Were those guys 'Team Rory'?" he asked. Clearly taken aback, Fallon then peeled the banana, joking that he needed some potassium as he pondered that question.
Fallon and Ventimiglia could agree that both Jess and Jack on This Is Us are both pretty "cool" characters.