Actor Will Ferrell will be at five different Spring Training ballparks in Arizona tomorrow as production begins on a HBO special from "Funny or Die," with help from Major League Baseball. Ferrell, is also completing the task of playing for ten different teams on the same day. The entire project is dedicated toward the fight against cancer.

The project tomorrow will be covered on social media with the hashtag #FerrellTakesTheField, the HBO special is scheduled to air later this year.

Ferrell's schedule will be busy tomorrow:

(all times Pacific; subject to change)

12:05 p.m.: Seattle Mariners at Oakland Athletics (HoHoKam Stadium)

1:10 p.m.: Chicago Cubs at Los Angeles Angels of Anaheim (Tempe Diablo Stadium)

2:10 p.m.: Cincinnati Reds at Arizona Diamondbacks (Salt River Fields at Talking Stick)

4:05 p.m.: San Francisco Giants at Chicago White Sox (Camelback Ranch)

6:15 p.m.: Los Angeles Dodgers at San Diego Padres (Peoria Stadium)

An important part of the special will be the game-used memorabilia from the journey across five ballparks, which will all be auctioned later at mlb.com.