Expendables 4 has been courting Manny Pacquiao for some time now. As always, the latest in the Expendables franchise will feature a massive collection of action stars, and as Sylvester Stallone's list of action stars he hasn't used yet grows slimmer, he's started extending roles to real-life fighters. Ronda Rousey, for example, who appeared in the last film, Expendables 3.

Pacquiao is the latest addition (or potential addition, anyway) to the franchise, but according to TMZ there might be more to his rumored casting than we thought. They're claiming that Stallone has offered parts to both Pacquiao and his rival Floyd Mayweather. It's not yet known if Stallone or Lionsgate has officially pushed to try and get them in the film, but Stallone is talking about it, which is usually a solid sign. Other rumored newcomers to The Expendables 4 include Jackie Chan and Pierce Brosnan.

The fourth film hasn't even been confirmed yet by official sources, but nearly every star of the last movie is incredibly excited to keep the franchise going. According to IGN, Jason Statham is an enormous fan of Stallone, and would like to keep doing Expendables movies as long as he can.

"Working with Sylvester Stallone is beyond a pinch yourself moment. I remember growing up watching his films. And to be directed by him and to be in a movie that he's produced and to be shoulder to shoulder with Sly is a privilege any man who loves action movies would never turn their nose up at. I mean, it's terrific. I'll do as many as he wants."

However, Franchise Herald indicates that the sequel may be in jeopardy, as Stallone himself might not have it in his heart for a fourth film, even if his costars all do. They report that Stallone is struggling to write the film, which could prove a major problem in production.

Check back soon for further updates on The Expendables 4.