Redshirt sophomore Vonte Jackson was moved back to tailback at preseason practice for the Wisconsin Badgers on Saturday and limped off the field after his balky right knee buckled while attempting to cut on a running play.
According to the Milwaukee Journal Sentinel, Jackson left the field and was wearing a wrap on his leg after practice.
Jackson is attempting to come back from his third ACL tear, sustained in June 2013 on the first day of summer workouts. He tore the same ACL, in his right knee, in preseason camp in 2012 and also blew the ACL in his left knee in the opening game of his senior season at Bradford High School in Kenosha.
Coach Gary Andersen is looking for a third tailback to play behind Melvin Gordon and Corey Clement and with freshman Taiwan Deal sustaining an injury in practice on Friday and freshman Caleb Kinlaw still recovering from offseason surgery, the Badgers were thin at the position.
Clement also went down late Saturday, with the initial report being he took a blow to the head on a pass-blocking drill.
Jackson was held out of spring practice, but appeared ready to contribute at safety this season.
“It was a zone read and he was going outside and he tried to cut it,” senior linebacker Marcus Trotter said. “And he just fell down. He wasn’t screaming too loud so hopefully it’s not a tear.
“I think it buckled. Hopefully he will be fine because he was such a great recruit and he is a great guy.”
A high-school teammate of Gordon’s at Kenosha Bradford, Jackson has yet to take the field for a game, sitting out 2012 as a redshirt and missing all of 2013 after the knee injury in June.