PITTSFORD, N.Y. -- Buffalo Bills cornerback Leodis McKelvin suffered a setback in his recovery from a broken ankle last season, coach Rex Ryan said Saturday.

McKelvin, who was placed on the active/non-football injury list this week, was seen Saturday sitting on a golf cart on the far end of the practice fields, with a scooter in the back seat.

"Well, I think he can walk but it's obviously ... we're trying to keep some weight off that injury right now," Ryan said Saturday.

Leodis McKelvin was able to work out with the Bills this spring after suffering a broken ankle last season. Timothy T. Ludwig/USA TODAY Sports

Asked if it can be considered a setback, Ryan responded, "Yeah, I would think so."

Second-round pick Ronald Darby has taken first-team reps in McKelvin's place during the first two practices of training camp.

"Opportunities come to other people," Ryan said. "We're excited where Darby is at and some of the other guys will get the reps. We've talked about the depth that we've had at that position. It's good. But obviously Leodis is a good football player and we hope that he gets back on the field soon."

Asked if he would feel comfortable starting Darby, Ryan responded, "Of course. Yeah. It's not the first time we ever started a rookie. So yeah, no, we feel that this guy can play. Hopefully Leodis comes back soon but obviously if he doesn't, the next man steps up.

"We feel good about Darby, we feel good about this kid [Mario] Butler. All he does is make plays. So you put him in there and you got other guys that have played. [Ron] Brooks. We're blessed to have a lot of guys that can play back there."

McKelvin fractured his ankle in a loss to the Miami Dolphins last November but was on the field participating in some limited portions of organized team activities and minicamp this spring.

Before McKelvin was spotted on a golf cart Saturday, Ryan chose his words carefully when talking about McKelvin after Friday's practice.

"As far as Leodis is concerned, he has a little injury and things," Ryan said Friday. "We will see how it goes, progresses through this training camp and things, but I am not concerned now with it. I know he is doing what he can with it to speed his recovery, so that’s a good thing."

McKelvin can be activated from the non-football injury list at any time before final roster cuts later this month. If he is transferred to the reserve/non-football injury list at that time, he will miss at least the first six games of the regular season.