CLEVELAND -

Johnny Manziel threw a party Friday night that was attended by multiple Cleveland Browns players, triggering a tumultuous weekend during which several players were punished by the team, according to multiple reports.

Receiver Josh Gordon, who was suspended Saturday for a violation of team rules, was one of the players in attendance, according to cleveland.com.

The Browns also fined Manziel on Saturday for being late for treatment on his injured hamstring, a source told ESPN. Less than 24 hours later, rookie cornerback Justin Gilbert was deactivated for yesterday's season finale against the Baltimore Ravens after missing a team meeting the previous night, a source told ESPN.

Both Manziel and Gordon were absent from the Browns' walk-through Saturday morning, and the team had trouble locating them, a source close to the team told ESPN.

Manziel had to be present for either the walk-through or, since he was on injured reserve, treatment on the hamstring. When he did not show for either, the team had to search for him. Browns security visited Manziel's home Saturday morning to check on the rookie quarterback about his treatment, sources told ESPN.

Manziel's party was first reported yesterday by CBS Sports.

Although he attended yesterday's game, Manziel did not comment on the reports, saying only, "I'll see you tomorrow."

Manziel, whose unapologetic stance about his offseason partying raised questions about his commitment, said this week he wants to be "the guy" for the Browns, who traded up in the first round to select him in May's draft.

Gilbert's absence from Saturday night's meeting also is troubling since the first-round pick is concluding an inconsistent rookie season. Being late Saturday night means that Gilbert was late after traveling with the team to Baltimore.

Gordon also was late getting onto the practice field Friday and emerged from the team's facility for the outdoor workout wearing teammate Travis Benjamin's jersey.

Owner Jimmy Haslam declared that some of the Browns' young players need to "grow up," saying that players who are not dependable "disrespect themselves, the team and the organization." He did not refer to Manziel, Gilbert or Gordon by name yesterday, but the implication was clear.

"I think a player who can't show up for meetings, can't make practice, can't make weightlifting, disrespects himself," Haslam said. "But I think more importantly, and I think this is what these young guys miss, they disrespect the team, the coaches, the staff, the fans.

"They're young kids. We're going to work with them - hopefully they grow up. But if they can't grow up and they can't be responsible to the their teammates and the coaches and our great fans, then they won't be with the Cleveland Browns.

"There's a lot of people in our organization whose livelihood depends on how well we do. We're not gonna tolerate people who are irresponsible, no matter what round they're drafted in."