Ryan Fitzpatrick believes he'll play against the Los Angeles Rams on Sunday despite a sprained MCL in his left knee, according to a league source.

Todd Bowles says that Fitzpatrick must practice in order to play for the New York Jets. Bryce Petty will start if Fitzpatrick isn't able to play.

Fitzpatrick, who has thrown a league-leading 13 interceptions this season, was injured when Dolphins defensive lineman Jordan Phillips rolled into his left knee in Week 9.