Arkansas Razorbacks running back Ja’Quinden Jackson is listed as doubtful for the team’s upcoming SEC matchup against the Ole Miss Rebels on Saturday, casting doubt on the availability of one of the team’s top offensive threats.

Jackson suffered an undisclosed injury during practice on Tuesday, according to head coach Sam Pittman. The nature of the injury has not been revealed, but Pittman described it as “day-to-day” and said that Jackson would be evaluated throughout the week.

Jackson’s absence would be a significant blow to the Razorbacks’ offense. The sophomore has been a key contributor this season, rushing for 437 yards and seven touchdowns on 91 carries. He has also been involved in the passing game, catching eight passes for 40 yards.

If Jackson is unable to play, the Razorbacks are likely to turn to sophomore Dominique Johnson and freshman Rashod Dubinion to handle the running back duties. Johnson has 102 rushing yards on 21 carries this season, while Dubinion has yet to record a carry.

“We’re hopeful that Ja’Quinden will be able to play on Saturday,” said Pittman. “But we’re not going to rush him back if he’s not 100%. We have confidence in Dominique and Rashod to step up if needed.”

The Razorbacks will face a tough test against Ole Miss, which boasts the SEC’s top-ranked defense in terms of points allowed per game. Jackson’s presence in the backfield would provide a boost to Arkansas’ offense, but the team is prepared to adjust without him if necessary.