Amendola opted to retire rather than return for his 14th NFL season, Adam Schefter of ESPN reports.
Amendola recorded seven receptions on eight targets for 113 yards and two touchdowns in Sunday's 28-25 loss to the Titans.
Amendola (undisclosed) was activated from the reserve/COVID-19 list Wednesday.
Amendola (undisclosed) has been placed on the reserve/COVID-19 list.
Amendola (knee) wasn't listed as injured on Wednesday's practice estimate.
Amendola (knee) is inactive for Sunday's game against the Chargers.
Amendola (knee) was activated off IR in advance of Sunday's game against the Chargers, Aaron Wilson of Sportstalk 790 Houston reports.
Per coach David Culley, there's "a possibility" that Amendola (knee) could play Sunday against the Chargers, Brooks Kubena of the Houston Chronicle reports.
Amendola (knee) has been designated to return from IR.
The Texans placed Amendola (knee) on injured reserve Saturday, Aaron Wilson of Sportstalk 790 Houston reports.