Donald Trump may have some quarterback friends, but it doesn't mean all of them are set to endorse him.

The Republican Presidential candidate is close with Patriots quarterback Tom Brady and has a good rapport with Steelers signal caller Ben Roethilsberger, but Big Ben isn't about to endorse the billionaire.

Roethlisberger said he will not endorse or speak on behalf of the candidate because "politics are not his thing," according to the Pittsburgh Post-Gazette.

The signal caller also called himself an "acquaintance" of Trump, but added he has no intentions of attending the Republican National Convention in Cleveland in July.

Trump has a close relationship with Brady and has even gone golfing with Roethlisberger. He recently said he was thinking about having both of the quarterbacks speak for him in July.

"He's with us 100 percent," Trump said of Roethlisberger during a campaign rally Saturday at Pittsburgh International Airport, according to the Post-Gazette.

Though he may be "100 percent" with Trump, it doesn't mean the quarterback is ready to endorse him.

The presidential hopeful has had many high-profile sports endorsements, including legendary Hoosiers coach Bobby Knight and Bills head coach Rex Ryan.

While Roethlisberger has balked at showing full-fledged support, Brady has gotten behind the "Make America Great Again" campaign and Trump has always heaped praise on the New England quarterback:

Roethlisberger, meanwhile, will focus on his NFL career with the season just around the corner. Roethlisberger, 34, threw to a 68 completion percentage and passed for 3,938 yards with 21 touchdowns and 16 interceptions in 12 games (11 starts) last season. Pittsburgh finished 10-6 and eventually fell to the Super Bowl champion Broncos in the divisional round.

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