Two of Helfet's 10 grabs this year have gone for touchdowns.
"I have had better days, and I have had worse days," Thomas told the paper on Monday. "You hope you just wake up one day and it feels good again, but that didn't happen last week. But it has improved."
Thomas still leads the NFL with 12 touchdown catches.
Amaro left Monday night's contest against Buffalo in the second half with a concussion. He has
34 catches for 291 yards and two touchdowns this season. He will need to be medically cleared by an independent neurologist in order to play Week 13 against Miami.
Tampa Bay will face Cincinnati in Week 13.
Daniels plays the Chargers in Week 13.