UFC champ Ronda Rousey has taken sides, and she is team Pacquiao all the way ahead of the mega-fight against Floyd Mayweather on May 2.

The undefeated champion visited Manny Pacquiao in his Los Angeles home and she didn't leave without taking a photo with the Filipino champion.

Ronda Rousey posted the photo on her Twitter along with the caption, "Truly honored to meet such a humble and genuine person. Thank you @MannyPacquiao for welcoming us into your home."

UFC champ Ronda Rousey is not the only celebrity who is supporting Manny Pacquiao in the mega-fight against Floyd Mayweather. Mike Tyson, NFL quarterback Tim Teebow, actor Mark Wahlberg, Mario Lopez and Robert Duvall are also team Pacquiao.

"But none of them have the distinction, as Rousey does, of being the only person promised a free ticket to Pacquiao-Mayweather at the MGM Grand Garden Arena in Las Vegas," said Daily Mail.

The megafight between Manny Pacquiao and Floyd Mayweather is reported to be the richest in boxing history.

Meanwhile, Amanda Nunes wasn't impressed with Ronda Rousey's demolition of Cat Zingano in their recent bout at UFC 184 in February.

"I think she was not prepared," Nunes said of Cat Zingano. "She didn't have a strategy for this fight. I think she only stepped in the cage and fought and that was it."

"I know my performance against Rousey, I know I'd be able to do more things, for sure. I think I'd be able to win the fight against Ronda."

"I think I didn't win the fight against Cat, but something will make it better. To be able to step in the cage against Ronda, I have to fix a couple things. I'm OK. I take my time. I'm going to be in the top five. I'll wait for my time. I'm in no rush," Amanda Nunes added.

 Thank you for visiting me @rondarousey and for your support. God Bless!

A photo posted by Manny Pacquiao (@mannypacquiao) on Apr 13, 2015 at 6:40pm PDT