However, he was medically cleared to compete once again last year and made a triumphant return to action at the Royal Rumble in January.
That was followed by a victory over Orton at WrestleMania 36, but the Rated R-Superstar is now seemingly set for another spell on the sidelines.
According to Fightful.com, and later confirmed by sites including PWInsider.com, the veteran sustained torn triceps during the encounter.
A triceps tear, depending on the severity, could mean that Copeland is out for four to eight months.
The match was taped several weeks ago and there had been an attempt to keep the injury quiet until it could be worked into company storylines.
Full results
1. Apollo Crews (c) defeated Andrade (with Angel Garza and Zelina Vega) – Singles match for the WWE United States Championship
2. Bayley and Sasha Banks (c) defeated Alexa Bliss and Nikki Cross and The IIconics (Billie Kay and Peyton Royce) – Triple threat tag team match for the WWE Women’s Tag Team Championship
3. Sheamus defeated Jeff Hardy – Singles match
4. Asuka (c) vs. Nia Jax ended in a double countout – Singles match for the WWE Raw Women’s Championship
5. Braun Strowman (c) defeated The Miz and John Morrison – 2-on-1 Handicap match for the WWE Universal Championship
6. Drew McIntyre (c) defeated Bobby Lashley (with MVP) – Singles match for the WWE Championship