Jarvis Byrd (torn ACL) to miss season

PINEHURST, N.C. -- NC State cornerback Jarvis Byrd, who was listed as the starter on the preseason depth chart, tore his ACL and will miss the season, coach Tom O'Brien said on Monday.

It is the second torn ACL for Byrd, who injured the opposite knee in 2010.

O'Brien said he found out about the injury on Friday afternoon. He said he will meet with the staff this week about the position.

"They were playing seven-on-seven Wednesday night like they do, and he felt something turn, and had an MRI Friday," O'Brien said. "I don't know when his surgery is, I just know that the MRI showed he had an ACL. He'll miss the year, certainly."

Byrd was one of the Wolfpack's top special teams players in 2009 and earned a starting role at boundary corner in November. He tore his ACL against North Carolina that year and missed 2010 spring practices and redshirted last year.

O'Brien also said running back Mustafa Greene, who had surgery in April for a foot injury, is expected to return Oct. 1.

Heather Dinich covers the Atlantic Coast Conference for ESPN.com.