Charlie Sheen Offers Johnny Manziel Advice on Twitter

Cleveland Browns quarterback Johnny Manziel's NFL future is seemingly hanging by a thread, but the embattled signal-caller received some advice from an unexpected source Saturday. 

Controversial actor Charlie Sheen took to Twitter to urge the 23-year-old 2012 Heisman Trophy winner to get his life back on track:

The hard-partying former star of Two and a Half Men has admitted to drug and sex addictions over the years, and he revealed that he is HIV positive during an interview on Today with Matt Lauer in November, per Eun Kyung Kim of Today.com.

Sheen has somehow continued to battle through it all, and his resilience is something that could resonate with Johnny Football during a difficult time.

Manziel is currently the subject of a criminal investigation after ex-girlfriend Colleen Crowley accused him of striking her multiple times, according to ESPN.com. Crowley also alleged that the former first-round pick threatened to kill her and himself, per Rebecca Lopez of WFAA News 8 in Dallas.

According to TMZ Sports, Manziel denied the accusations and insisted there is nothing to be concerned about. "I'm completely stable. I'm safe and secure," Manziel said.

Manziel's father, Paul Manziel, told Kate Hairopoulos of the Dallas Morning News that his son twice refused to go to rehab and expressed concern for his son's health: "I truly believe if they can't get him help, he won't live to see his 24th birthday."

Manziel previously entered a rehab facility in early 2015, only to be disciplined by the Browns for lying about a video showing him partying that surfaced during the season.

Per ESPN.com's Pat McManamon, the Browns are certain to release Manziel in March, which means his NFL career could very well be over.

While getting help now won't save his tenure with the Browns, committing to changing could potentially help him latch on with another team.

The criminal matter involving Manziel certainly complicates things, but if he shows a willingness to get himself right from an off-field perspective, another organization may be willing to gamble on his pure talent.

Follow @MikeChiari on Twitter.