Cleveland Browns guard Jason Pinkston is in a Cleveland-area hospital being treated for a blood clot and will miss Sunday's game against the Indianapolis Colts.
Pinkston became ill during last week's game against the Cincinnati Bengals, although coach Pat Shurmur said he didn't know if it was related to the blood clot. He also declined to say where the blood clot is.
"We'll determine through the week if it's going to be an extended period of time, but he won't play this week," said Shurmur, who planned to visit Pinkston in the hospital.
John Greco will start in Pinkston's place against the Colts.
"As a backup, he's been a guy that can play center, guard as well as tackle," Shurmur said. "In this case he's going to play guard."
Running back Trent Richardson practiced again Friday, and is expected expected to play with a flak jacket protecting his rib cartilage injury on his right side.
Richardson never wants to leave the field, so if the flak jacket protects him from pain he should get the bulk of the carries in Indianapolis.
"I think when he gets in there and gets rolling, a lot of things that tend to hurt until the adrenaline flows kind of go away," Shurmur said. "He's cleared to play and my assumption is that he'll be there Sunday."