In a story from The Hollywood Reporter, Warner Bros. has bought writer Tim Kelleher's pitch, Grudge Match.

Billy Gerber and Mark Steven Johnson are producing. Grudge Match is said to be similar to the Warner Bros. movie Space Cowboys (released in 2000).

The story focuses on retired fighters Billy "The Kid" McGuigan and Henry "Razor" Sharp. These two are "lifelong bitter rivals who are coaxed out of retirement and into the ring for one final grudge match -- 50 years after their last title fight."

Kelleher is also going to write the screenplay.