The New York Jets are down another quarterback.
Falk was the Tennessee Titans' sixth-round selection in the 2018 draft. He had yet to attempt a regular-season pass before entering Monday's contest. The 24-year-old completed 80% of his attempts while throwing two touchdown passes and zero interceptions in the preseason.
Siemian completed just three of his six attempts for three yards before exiting.
Jets head coach Adam Gase told ESPN sideline reporter Lisa Salters the team's emergency quarterback is running back Le'Veon Bell.