Ryan Leaf’s May Arrest Not Substance Abuse Related, Lawyer Says

Ryan Leaf‘s domestic battery arrest was NOT substance abuse-related … so says the ex-NFL QB’s attorney, who tells TMZ Sports the former San Diego Charger is still “100% sober.”

There had been some concern after 44-year-old Leaf — who has battled drug and alcohol problems in the past — had suffered a relapse that led to his arrest on May 22.

But, when we spoke to David Greenberg of the Law Offices of Soda & Greenberg … he told us that just wasn’t the case at all.

“He is 100% totally sober,” Greenberg said of Leaf, “and spends a good part of every day over the last five years helping other people remain that way.”

In fact, Greenberg says the whole alleged incident was nothing more than a “minor dispute.”

“Nobody was injured,” Greenberg said. “There was no allegation of any kind of weapon or anything like that.”

“This was a couple that had a small minor dispute and it’s unfortunate that it ended up in the criminal justice system.”

We broke the story … Leaf was booked on a domestic battery charge at around 2 p.m. on May 22 — and was formally hit with two misdemeanor charges by prosecutors this week.

But, Leaf cut a plea deal in court Friday … and ultimately avoided further jail time in the case.

Greenberg said Leaf and his family are happy to have all this now behind them … adding Ryan is still committed to helping people with substance abuse problems daily.