Los Angeles Rams quarterback Jared Goff expressed uncertainty whether he will be able to play in a regular-season finale after he suffered a thumb injury on Sunday in a 20-9 loss at the Seattle Seahawks.

Sources told ESPN's Adam Schefter the Rams fear Goff's thumb is broken and that he will undergo further testing in L.A. on Monday.

"I am uncertain," Goff said when asked if he'll be able to play next Sunday at home versus the Arizona Cardinals. "We will see."

John Wolford, an undrafted free agent in 2018 from Wake Forest, is the Rams backup quarterback. Wolford has never appeared in a regular-season NFL game.

Goff said his thumb didn't bother him after he suffered the injury.

"I hit it on [a] helmet there some time in the third quarter and popped it back into place and just finished the game," Goff said.

The Rams (9-6) have lost two straight games for the first time this season but can clinch a playoff spot with either a win against the Cardinals (8-7) or a Green Bay Packers victory at the Chicago Bears (8-7) in Week 17.