The Buffalo Bills were hit with a worrying injury update to Josh Allen after the star quarterback sustained an elbow ailment late during the Week 9 loss vs. the New York Jets. While initial reports were optimistic that Allen had avoided serious injury, NFL insider Chris Mortensen indicated that the star QB is now being evaluated for a potential ulnar collateral ligament injury.

Via Chris Mortensen on Twitter: 

“Bills QB Josh Allen is being evaluated for an elbow injury to his ulnar collateral ligament and related nerves, per source. Bills coach Sean McDermott said earlier team hopes to have more info Tuesday.”

Ulnar collateral ligament (UCL) injuries are largely linked to Tommy John surgery among MLB circles, a common procedure for pitchers to undergo if they pick up an elbow injury. The report of a UCL injury for Josh Allen has led to speculation that he may require Tommy John surgery, though the Bills have not confirmed any of those rumors.

We won't know more until tomorrow, but Bills fans were surely be holding their breath until the team provides its next update on the MVP candidate.

Tommy John surgery typically requires a lengthy absence. Most MLB pitchers who undergo the procedure are sidelined for more than a full season, and sometimes two.

Allen was seen grabbing at his throwing elbow during the fourth quarter of the loss to the Jets, clearly in some discomfort. Now it seems the pain he was in is related to an injury to his UCL, which is a significant concern for the organization.

Hopefully, Josh Allen Tommy John surgery isn't something the Bills have to explore too deeply, as he is in the midst of a career year in Buffalo. But any injury to the ulnar collateral ligament is a major concern for a player who relies so heavily upon his arm, and the Bills will explore every possible option.

Bills fans should keep their eyes peeled for another update on Allen, as the organization indicated there would be more information available on Tuesday.