Hopkins, a third-year pro, can’t return to the active roster until after the Rams on Oct. 29. 9 game against the Dallas Cowboys.
Hopkins, a 2020 fourth-round draft pick from Purdue, was inactive for much of his first two seasons but stepped up with a dynamic performance in the Super Bowl. His development has led the Rams to carry just two tight ends on their 53-man roster, veteran Tyler Higbee and Hopkins.
Jared Pinkney and Roger Carter Jr. are the tight ends of the practice squad.
The Rams (1-2) take on the Arizona Cardinals (1-1) on Sunday at State Farm Stadium in Glendale, Arizona.