CLEVELAND, Ohio -- The Browns suffered another huge blow Wednesday when first-round pick Corey Coleman broke a hand in practice, a league source told cleveland.com.

He was injured when he caught a pass and someone came down on the hand. Practice is only open to the media for the first 20 minutes and it happened after that.

He underwent X-rays after practice, which confirmed the break. He'll see a hand specialist Thursday morning to determine the extent of the break and whether or not he'll need surgery.

"An X-ray late this afternoon on Corey Coleman's hand revealed a fracture," the Browns said in a press release early Wednesday night. "He was a full participant in today's practice. The injury is being further evaluated in order to determine when he will return to play."

The injury is another in a series to afflict the Browns at the start of this season. In Sunday's loss to the Ravens, Josh McCown suffered a left shoulder injury, Cam Erving a bruised lung and Carl Nassib a broken hand that required surgery on Wednesday.

Robert Griffin III is also out 8-12 weeks following a broken left shoulder in Game 1 against Philadelphia.

Coleman, the No. 15 overall pick out of Baylor, is coming off a breakout game in which he caught he caught two touchdown passes and totaled 104 yards on five receptions.

"Two touchdowns, five catches, over 100 yards,'' said head coach Hue Jackson. "Keep doing that for me baby, and we are right on.''

If Coleman is out of the lineup, one of the other rookie receivers will likely have to step in opposite Terrelle Pryor. They are Rashard Higgins, who backs up Coleman and Andrew Hawkins at the X, and Ricardo Louis and Jordan Payton, who back up Pryor on the Z, or tight end side.

Before practice, Pryor praised Coleman.

"That's a first-round pick, we did a great job picking him,'' said Pryor. "He's a great player. Corey, I know in college he battled hamstring issues and stuff like that. I thought he did an awesome job. It's different when you're a rookie. You have to learn how to take care of your body.

"It's a lot different running and practicing at Baylor or any college then coming here and practicing with Hue Jackson. It's fast - fast-paced, everything, you throw the ball down the field.

"I had a long talk with him about how to prepare and how to work on your body after practice and how you have to stay here extra hours. They're little things that get boring but it's good for you and the team because you're going to be available. Being available is the most important thing when you play in the league. I'm proud of the kid and look forward to seeing what he does this week."