The 2007 movie The Comebacks is a spoof of the sports-film genre.
Directed by Tom Brady and starring David Koechner, The Comebacks follows a down-and-out coach who takes charge of a struggling football team. Its plot deliberately uses familiar underdog and inspirational-sports formulas, then pushes them into broad comedy.
The film parodies recognizable sports movies and sporting clichés rather than focusing on one single title. Its targets include stories built around football, baseball, basketball, gymnastics, hockey, and other competitive pursuits. References include films such as Rocky, Remember the Titans, Field of Dreams, Miracle, Friday Night Lights, and DodgeBall.
The title can cause confusion because “comebacks” might suggest a general story about personal recovery. In this case, however, the question asks about the genre being spoofed: it is specifically sports movies, often described as inspirational sports films. The movie itself is usually classified as a comedy or sports parody.