Thomas "likely" tore his ACL and MCL during Sunday's victory over the Raiders, Adam Schefter of ESPN reports. He caught three of five targets for 48 yards and a touchdown before departing with the knee injury.
Thomas will undergo more tests on his knee when his team returns home from Las Vegas, but the initial reports about Thomas' injury aren't promising. In the likely event Thomas is done for the season, Ricky Seals-Jones (hip) and John Bates will split the bulk of the work at tight end in some fashion.