Browns rookie linebacker Barkevious Mingo remained hospitalized Friday, a day after suffering a bruised lung in the first half of an exhibition game against Detroit.
Mingo, the No. 6 overall pick in this year's draft, will stay at least one more night at The Cleveland Clinic, where he was taken before the end of the Browns' 24-6 win over the Lions. Browns coach Rob Chudzinski said the team doesn't know how Mingo sustained the injury.
"We looked at the tape," Chudzinski said Friday. "There wasn't a big hit that you could see. Obviously he had a number of plays with some contact, but it was hard to determine which hit it was."
Chudzinski said the 6-foot, 240-pound Mingo was having trouble breathing before he left the field and was eventually taken to the hospital. Chudzinski said doctors are being cautious with the 22-year-old former LSU star.
"Anytime that there's that kind of injury they just want to make sure everything is OK in terms of his health and breathing and everything else," Chudzinski said.
Mingo was on kickoff coverage and took a few snaps at outside linebacker in the first half before he left the field and went to the locker room, escorted by a team trainer.
Chudzinski said it's too early to determine how long Mingo could be sidelined. The first-round pick had a strong debut last week against St. Louis and Mingo had an impressive training camp.
He was one of five Browns players injured in Cleveland's second straight win.
Running back Dion Lewis broke his left leg and will need surgery. It's possible the Browns will place the versatile Lewis, acquired in a trade from Philadelphia in March, on injured reserve.
Also, starting right guard Jason Pinkston sustained a high ankle sprain when teammate John Greco rolled over him on Cleveland's second offensive series. Pinkston, who missed most of last season after developing blood clots in his lungs, will likely miss "the early part of the regular season," Chudzinski said.
Browns tight end Gary Barnidge sprained his shoulder and rookie kicker Brandon Bogotay, who is competing with veteran Shayne Graham, sprained his groin.
With Lewis and Pinkston expected to miss significant time, Chudzinski said it's possible the Browns will sign a running back and guard.