Jets head coach Todd Bowles is not yet ready to name a backup quarterback, he told reporters on Wednesday.
The Jets begin the season on Sunday against the Bills in Buffalo at 1 p.m.
Bryce Petty was listed as the backup to Josh McCown, with Christian Hackenberg the third-string quarterback, on the unofficial depth chart released by the Jets on Tuesday.
Bowles announced recently that McCown, who signed a one-year deal during the offseason, would be the starter.
Petty, 26, went 75 for 133 with three touchdowns and seven interceptions in six games for the Jets last season
Hackenberg, 22, did not play in any regualr season games last season after being selected in the second round (51st overall) of the 2016 NFL Draft.