Bills tight end Charles Clay left Sunday’s game with a knee injury and he didn’t wait long to have surgery to address his injuries.

PFT has learned, via a league source, that Clay diagnosed with a torn meniscus and sprained MCL. He had surgery to repair the injury on Monday and coach Sean McDermott told the media that he anticipates being without Clay for multiple weeks.

Clay has 20 catches for 258 yards and two touchdowns this season and leads the Bills in both receiving yards and average yards per catch.