Posted: Tuesday February 28, 2012 2:46PM ; Updated: Tuesday February 28, 2012 4:03PM

NCAA suspends NC State linebacker Green for entire 2012 season

Story Highlights

Linebacker D.J. Green tested positive for using an unidentified banned substance

Green apologized, saying he was trying to gain weight by using supplements

Suspension means NC State will have to replace all three linebackers from 2011

RALEIGH, N.C. (AP) -- North Carolina State linebacker D.J. Green says the NCAA has suspended him for the season after he tested positive for using a banned substance that he did not identify.

Green apologized in a statement. He says he was trying to gain weight during the offseason and took a supplement given to him by someone from his hometown in Macon, Ga.

He says he "wasn't responsible enough to check with our coaches to make sure that it was something legal and now I'm paying the consequences."

The 6-foot-4, 220-pound Green had 28 tackles, one sack and one interception in seven games last year with the Wolfpack. He missed the final five games with an unspecified foot injury.

The suspension means N.C. State will have to replace all three linebackers from last year. Middle linebacker Audie Cole graduated and outside linebacker Terrell Manning entered the NFL draft early.

Green, a sophomore, will be allowed to practice with the team but cannot play in games.