David Ortiz had strong words for Bobby Valentine in his new autobiography, calling his one-time manager "arrogant," "disrespectful," "irrational," "clueless" and "aggravating as hell."

Valentine was fired after managing the Boston Red Sox to a 69-93 record and a last-place finish in 2012.

In an excerpt of "Papi: My Story" posted on SI.com, Ortiz writes: "The drama began almost immediately in spring training. I remember fighting the thought, very early, We're going to have an absolutely terrible year.

"It was all about him in the spring. It was as if he wanted to prove how smart he was by running us through all these drills he'd used while managing in Japan, drills we had never done before. Bobby was in his own bubble, and I just wanted to get him out of it and tell him, 'F--- you.'

"He asked for a lot of changes, including some that were completely unnecessary. One of the more ridiculous ones was having players hit grounders to each other. I thought that was funny, especially for me. The Red Sox weren't paying me to hit grounders; I was there to hit balls to the moon."