Will Ferrell will appear in a new HBO documentary called Ferrell Takes the Field.
Ferrell has spearheaded the project in order to raise awareness for cancer research groups.
The actor will play all nine baseball positions in one day for the documentary, appearing at Major League Baseball's Cactus League games across the state of Arizona today (March 12).
Major League Baseball commissioner Rob Manfred announced the project, saying: "Spring training affords an appropriate setting where our game can serve as the backdrop for an event that will benefit organizations that fight cancer.
"Will is a big fan of our game, and many of us in baseball – among our clubs, players and our millions of fans – are big fans of his. Major League Baseball is happy to take part in what will surely be a fun and memorable day for a great cause."
Ferrell Takes the Field will debut on HBO later this year.
