Ayers has been in New Jersey all week to deal with the death of his father. The funeral is on Saturday and it is unknown if Ayers will return in time for Sunday's game.
Stokley has been limited at practice all week with wrist and hip injuries. Stokley was injured during the Broncos 17-9 win over the Chiefs, but did not leave the game for an extended time. He has not missed a game this season and has 36 receptions for 449 yards and five touchdowns.
Backup tackle Chris Clark is also listed as questionable with an illness.
Tight end Virgil Green (hamstring), defensive lineman Malik Jackson (finger), guard Chris Kuper (ankle), cornerback Tracy Porter (illness), guard Manny Ramirez (back), and wide receiver Demaryius Thomas (knee) are all listed as probable after fully participating in practice on Friday.
The Broncos host the Bucs on Sunday; kickoff is at 2:05 p.m. PT.