Bengals sign McCarron to practice squad, Burrow questionable for Rams game

Bengals QB Joe Burrow has calf injury, status uncertain for Week 3 game vs Rams.
Team worked out QBs Trace McSorley and AJ McCarron as backup options.
Cincinnati signed veteran QB McCarron, a former Bengal, to practice squad.
If Burrow can't play, backup Jake Browning would start at quarterback.
Bengals also list TE Irv Smith Jr as doubtful for Monday night's game.