When is right time to draft Aaron Colvin?

It’s apparent the San Francisco 49ers are possibly interested in drafting a player coming off a major injury again.

Former Oklahoma cornerback Aaron Colvin told Sirius XM Radio that he will visit the 49ers this week. Colvin tore the ACL in his knee during Senior Bowl week in January, but he could be ready to play toward the end of the season.

The 49ers have shown they are willing to wait for a good player, even if he's injured. Last year, they drafted defensive lineman Cornellius "Tank" Carradine in the second round and running back Marcus Lattimore in the fourth round after both had suffered ACL injuries.

However, drafting Colvin may come with more overall injury risk than Carradine and Lattimore. ESPN draft analyst Steve Muench said Colvin is a talented player, but his injury history is worrisome. Colvin missed almost all of the 2011 season with a shoulder injury. Muench also points out Colvin's weight -- he was listed at 192 pounds at Oklahoma, but weighed 177 at the combine.

“If he can regain the weight once he’s healthy and can stay healthy, he’s got the tools to be an effective No. 3 corner,” Muench said. “He’d see the field a lot with how often teams line up with three or more receivers. He’s instinctive, he has above average cover skills and he tackles well.”

Muench said Scouts Inc. had Colvin rated as an early third-round pick prior to his injury. Now, the group has him as an early fourth-round pick. The 49ers will likely add multiple cornerbacks and with a surplus of picks, they may feel like they can take a flier on Colvin.

Meanwhile, the Sacramento Bee reported the 49ers will visit with several rookie prospects this week including Clemson speed receiver Martavis Bryant. He could be a target in the second round.