The surgery comes after Mary Kay Cabot of Cleveland.com reported Thomas tore his left triceps tendon during Sunday's Week 7 loss to the Tennessee Titans at FirstEnergy Stadium and that he would miss the remainder of the 2017 campaign.
Thomas took to Twitter before his surgery:
On Monday, Adam Schefter of ESPN reported the left tackle was looking at a six- to nine-month recovery period.
Seeing Thomas injured in any way is jarring considering how durable he has been throughout his impressive career. Cabot noted he played an NFL-record 10,363 consecutive snaps before the injury, battling through torn knee ligaments at times, and started 167 straight contests.
He earned 10 Pro Bowl nods and six first-team All-Pro spots during his record-setting run of durability and has been one of the few bright spots for a struggling Cleveland franchise.
The 0-7 Browns now face life without Thomas and will likely turn to Spencer Drango moving forward after he replaced the starter in Sunday's 12-9 overtime defeat.