OAKLAND — Stephen Curry, who attended a Giants game late last week, said he isn’t trying to play favorites between the Bay Area’s two baseball teams. “I’m actually a Red Sox fan,” he said.

But after the Warriors’ star guard showed up at AT&T Park, A’s outfielder Josh Reddick playfully tweeted his disapproval.

“Hurts seeing Curry at a Giants game. #RightInTheJugular” Reddick posted.

Curry was unaware of the social media rivalry he’d sparked.

“I’ve been to plenty of A’s games, plenty of Giants games,” he said. “I obviously support both Bay Area teams. That’s probably not the most popular stance. I like to see teams do well and play well and I’ve worn both hats. So I’m all right with that.”

Reddick on Sunday tweeted that he was just playing around.

“Geez guys let it go. I’m not mad at @StephenCurry30. Just having fun. Figure it out,” he wrote.

The A’s got some love Sunday from Curry’s “Splash Brothers” partner, Klay Thompson, who came out to the Oakland Coliseum to watch them beat the Yankees.

“It was a lot of fun,” Thompson said. “We had Sunday off. What a great way to spend a day, sitting in the sun, watching a great ballgame. They support us, so it was cool to go watch them play.”

Curry, who grew up in Charlotte, North Carolina, had no in-state team for whom to root as a child.

“There’s no baseball team so I’m basically a free agent,” he said. “Me and my brother, I chose the Red Sox when I was 9 or 10, he chose the Yankees and we had our little rivalry going on. So that’s my team.”