Ryan Clady expected to miss 2015 season after ACL tear Wednesday

Denver Broncos Pro Bowl left tackle Ryan Clady tore his left ACL during practice Wednesday and is likely to miss the 2015 season, a league source said.

Clady was treated by trainers after he went down on the field before standing up. He did not participate for the rest of the practice, but he remained on the field, limping slightly.

Denver drafted former Colorado State offensive tackle Ty Sambrailo in the second round this year, but look for the Broncos to hit the free-agent market to add another player at the position, as well.

Clady has had issues with his left knee in the past, so it could be problematic long term. Clady is Denver's longest-tenured player, having been the team's first-round pick in 2008.

With Clady's injury, both Mannings -- Peyton and Eli -- have lost their starting left tackles for indefinite periods this offseason. New York Giants left tackle Will Beatty tore his pectoral muscle last week and is out until at least November.

Information from ESPN.com's Jeff Legwold was used in this report.