The former Texas A&M Heisman Trophy victor was hospitalized in Texas on Monday night for a negative reaction to his medication, TMZ Sports reported.
Manziel's representative, Denise Michaels, told TMZ Sports the quarterback is "fine". If Manziel is already out of the hospital, it doesn't appear he was in great danger.
Manziel, 25, is attempting an NFLcomeback after not playing in the league since 2015.
That second chance was brought to a screeching halt on Monday after the former Cleveland Browns QB was hospitalized in Texas due to a reaction to medication. He was first there to play in a golf tournament which was hosted by his former college teammate and current Tampa Bay Buccaneers wide receiver Mike Evans.
In the last several months, former National Football League quarterback Johnny Manziel has made a concerted effort to turn his life around in order to get some stability and work toward a chance of making a comeback.
We'll update you on Manziel as more details come in. He's now a free agent and playing in the new The Spring League.
Johnny Manziel has worked very hard to get things in order in his life and he's now focusing on getting his professional football career back on track.
Etheridge helps Cardiff gain Premier League promotion
By 2015, he landed a contract with Charlton Athletic, but later got released. "I just trained as hard as I could and waited". His only appearance for Fulham came in a UEFA Europa League match against Danish side Odense Boldklub in December 2011.