Is it true that the movie the rookie is it a true story based on the following text?

The Rookie is a 2002 American sports drama film directed by John Lee Hancock and produced by Walt Disney Pictures. It is based on the true story of Jim Morris, who had a brief, but famous Major League Baseball career in 1999--2000. The film stars Dennis Quaid, Rachel Griffiths, Jay Hernandez, and Brian Cox.
yes