GRAPEVINE, Texas -- Rookie defensive end Tyrone Crawford, the Cowboys third-round pick, was diagnosed with a heart murmur at the national scouting combine.

On Wednesday, Crawford's agent, Dr. D.S. Ping, confirmed what doctors discovered but said it wasn't a major issue and didn't believe NFL teams took his client off their draft boards.

"Never affected anything," Ping said. "No doubt."

Said team owner/general manger Jerry Jones: "The heart murmur issue is one that I'm satisfied is OK for us."

The Cowboys have taken risks drafting players with injuries in the past.

In the last three drafts the Cowboys drafted players coming off surgeries: Stephen Hodge (knee in 2009) Sean Lee (knee in 2010) and Bruce Carter (knee in 2011). Only Hodge never made the active roster.

This year, the Cowboys selected Crawford, an athletic player with pass-rush abilities. The Cowboys also signed guard Ronald Leary as an undrafted free agent despite the fact he played with a chronic knee condition that could shorten his career.

"We didn't take anybody that had a (draft) grade that said 'don't take,'" Jones said. "We didn't do that. We basically reached out for Leary and we wouldn't have an opportunity for him, the way our draft fell had there not been an issue. He's got a situation, that in my mind (is) our risk with it how long he'll play. And long being in terms of years."