PITTSBURGH -- Pittsburgh Steelers defensive end Aaron Smith underwent surgery Monday for a partially torn triceps, but won't be placed on injured reserve in hope that he could return sometime this season.
Steelers head coach Mike Tomlin said Tuesday that Smith would be sidelined for "an extended number of weeks."
Smith was hurt in Sunday's game against Miami.
"It was partially torn and was fixed," Tomlin said at his Tuesday news conference. "He is going to be out an extended period of time and at this juncture we intend to wait that out. Aaron is a quality player, a veteran leader for us. If there is hope for his return then of course we are going to be hopeful for as long as we possibly can."
Smith has 15 tackles in six games this season. He played just five games in 2009 before a shoulder injury ended his season last October.
The Steelers selected the Northern Colorado product in the fourth round of the 1999 draft. He was a Pro Bowl pick after the 2004 season.
Tomlin also said offensive tackle Flozell Adams would likely be limited in practice this week because of an ankle injury he sustained against Miami.