Curt Schilling Says Griner Should 'Pay The Penalty' In Russia, 'Obey The F***ing Law'

Curt Schilling clearly has no problem seeing Brittney Griner's detention in Russia drag on ... the ex-MLB star said Sunday night he believes the WNBA player should "pay the penalty for breaking another country's laws."

Schilling wrote the controversial statement on his Twitter page -- in a response to LeBron James' plea to bring Griner home.

"I know this may seem like a stretch," the 55-year-old said. "But something like 300 million people understand 'OBEY THE F***ING LAW', why is that such a challenge?"

"And why on earth should she NOT pay the penalty for breaking another country's laws?"

Griner has been locked in a cell in Russia since mid-February, after authorities said they found hashish oil in her luggage at an airport in Moscow. At a hearing in the case earlier this month, Griner pled guilty to the charges ... telling a judge at the time, "I didn't want to break the law."

Schilling obviously believes her plea and subsequent statements are justification for her to remain behind bars as long as Russia sees fit.

"She, as far as I know from every quote of hers," Schilling said, "has NEVER denied committing the crime, not once."

The United States government, meanwhile, has classified Griner as "wrongfully detained" and is in the process of negotiating with Russia to bring her home.