Jamie-Lynn Sigler Is Dating Mark Sanchez!

Credit: Jamie McCarthy/Getty Images for Tribeca Film Festival

New couple alert!

Jamie-Lynn Sigler, 28, is dating New York Jets quarterback Mark Sanchez, 23, a source tells UsMagazine.com.

PHOTOS: Will these couples last?

"They met Monday night at the LG Infinia premiere of Keep Surfing for the Tribeca Film Festival and really hit it off," the source says. "They were flirting and talking all night.


"Who knows where it will go, but it definitely looks like the start or something," adds the insider.

Sigler split from her Entourage costar beau Jerry Ferrara last December after over a year of dating.