Baltimore Ravens quarterback Lamar Jackson needs surgery on his right thumb, coach Jesse Minter said after Sunday's 36-10 loss to the Buffalo Bills, ESPN and AP report. Jackson will be placed on injured reserve, Minter said, according to ESPN and AP.

"That'll be a surgery deal. He'll go to (injured reserve)," Minter said, according to AP. "That's a tough deal." Minter also said the injury could be season-ending, AP reports. That is a possibility he raised, and none of the outlets cited here reported a final ruling on Jackson's season.

Jackson was hurt on Baltimore's first offensive play. While he threw a pass to Zay Flowers, his right hand struck the arm of Bills pass rusher Greg Rousseau, AP reports. ESPN says Rousseau was trying to knock down the throw. Jackson went straight to the sideline, ESPN and AP report.

It was Jackson's first game back after he missed three games with an ankle injury, ESPN and AP report. ESPN calls it a high ankle sprain. Jackson later came back to the sideline with his thumb in a splint, AP reports.

Things got worse for Baltimore in the second quarter. Backup Tyler Huntley left with a toe injury, ESPN and AP report. Joe Fagnano, an undrafted rookie, finished the game. He went 10 of 21 for 91 yards with an interception, ESPN and AP report.

Bills quarterback Josh Allen threw two touchdown passes and ran for another score, AP reports. The loss dropped the Ravens to 4-4, AP says. Baltimore hosts Jacksonville on Thursday night, and it is unclear whether Huntley will be able to play on the short week, AP reports.

What we know: Jackson needs surgery on his right thumb and will go on injured reserve.
What we don't: How long he will be out, and whether he will play again this season.