Crawford, who was injured in the second half, underwent surgery to repair his broken right collarbone Monday morning. He caught two passes for 44 yards in the 48-10 win against Missouri State in War Memorial Stadium.
Arkansas coach Bobby Petrino wasn't available for comment Monday, but said Saturday night he was "not real encouraged."
"It's a clavicle, so there's a possibility that he'll be out for a while," Petrino said after the game.
Crawford is the second receiver sidelined by a broken collarbone this season. Senior Lucas Miller went down with the same injury during the preseason and also underwent surgery.
Without Crawford, Arkansas will lean on sophomores Jarius Wright, Joe Adams and Greg Childs to handle the workload at wide receiver. Freshman Cobi Hamilton, junior Carlton Salters and senior Reggie Fish also will be relied on more at the position.
But Crawford's injury wasn't the only news Monday.
Running back Dennis Johnson was named the Southeastern Conference's co-special teams player of the week for his performance against the Bears. Johnson returned the opening kickoff 91 yards for a touchdown, setting the pace in a first half in which the Razorbacks outscored MSU 31-10.
Johnson — who returned a kickoff for a touchdown against Tulsa last season — shared the honor with Florida's Brandon James. James had an 85-yard kick return for a touchdown in the top-ranked Florida's 62-3 win against Charleston Southern.
Johnson set a school record for kick return yards in a season as a freshman (905). With his two returns Saturday, Johnson is now fourth in school history in career kickoff return yards (1,020).
"I'm trying to take one back every game," Johnson said after his return. "If not every game, then one every other game."
Crawford Out 4 to 6 Weeks
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