The Cleveland Browns won't part ways with their young quarterback Johnny Manziel, says team owner Jimmy Haslam.

Prior to attending the team's organized team activities and rookie camp in the offseason, the Browns quarterback spent 10 weeks in Caron Addiction Treatment Center in Pennsylvania. Manziel, who voluntarily submitted himself for treatment, was discharged from the center on April 11, Cleveland.com reported.

While at the recent rookie camp, several members of the Cleveland team reportedly gave positive remarks on Manziel's attitude. The team's offensive coordinator, John DeFilippo, described Manziel as "great" and "fantastic." DeFilippo also noticed that the quarterback had "been working hard" and was even "very hard with himself," NFL.com informed.

But Manziel's performance on Thursday last week seemed to suggest otherwise. The 22-year-old quarterback's first four dropbacks reportedly resulted to two sacks, a pass which was almost intercepted, and a "pass batted down at the line," ESPN reported. The Texas-born athlete also seemed to feel his lackluster performance based on his body language.

With this kind of performance, will Manziel be cut soon by the Browns?

On Saturday, during the training camp, Haslam expressed his confidence on Manziel as he believes that the player will eventually find his mark in the league despite his recent struggles.

"Despite what everybody reads and says, we've not at all given up on Johnny (Manziel). We think he has the potential to be a good football player. Now, having the potential and doing it are two different things, but I think we've said numerous times that you're not going to win consistently in this league without a good quarterback and we're trying to make that happen," Haslam said, as quoted by Cleveland.com.

Haslam further explained that Manziel is still young and could still learn a lot, that's why he is not pressuring him to show him what a great quarterback should be this year. Although the team owner was very gentle and understanding of Manziel's situation, he also said that ultimately, Manziel should step up his game and be the "legitimate quarterback" their team needs.

Haslam's statements echoed Browns general manager Ray Farmer's during the rookie camp, which should be enough to make Manziel strive harder to prove his worth in the upcoming season.

"This is still the National Football League. There's no rest for the weary. We get it. We're supportive of him and his personal endeavors and he's got to come out and perform and demonstrate that he's worthy of being on the 53-man roster," Farmer said, as quoted by Sporting News.