According to King, the Browns are "so done" with Manziel after he missed a concussion checkup at team headquarters Sunday morning, and couldn’t be reached on his phone all day.
He added that Manziel, the No. 22 pick in the 2014 NFL draft, would like to play for the Dallas Cowboys.
Manziel grew up in Texas and played football at Texas A&M, and while Cowboys backup quarterback Kellen Moore is under contract for one more season, third-stringer Matt Cassel is not.
Late on Saturday, USA Todayreported that Manziel, who is still in concussion protocol, was seen gambling at a Las Vegas casino. After the report surfaced, Manziel posted a photo to Instagram with a geotag in Cleveland, Ohio, that seemed to indicate that he was at home.
Manziel’s agents will not comment on their client’s whereabouts since leaving the team facility on Saturday, according to CBS Sports’ Jason La Canfora.
- Kenny Ducey