Oklahoma true freshman running back Samaje Perine just turned 19 years old this week. But he was a grown man among boys Saturday, as he bowled over West Virginia in Oklahoma’s 45-33win in Morgantown. Perine rushed for 242 yards and four touchdowns while averaging 7.1 yards per carry. It was the 13th best rushing total in Sooners history, which is saying something at a school that has produced Greg Pruitt, Steve Owens and Billy Sims, among countless other standout rushers. It was also the second best rushing output ever in a game by a true freshman at Oklahoma, trailing only Adrian Peterson’s 249-yard performance against Oklahoma State in 2004. After the opener, Perine naively declared this could be the best running back group ever to pass through Oklahoma. That’s way too bold, but Perine and sophomores Keith Ford and Alex Ross — who returned a critical kick for a touchdown at the end of the first half to give the Sooners momentum for good — figure to give Oklahoma one of the nation’s most formidable one-two-three punches at running back for the foreseeable future. Perine, a tank of a rusher, is heading that charge.