After defecting from Cuba last fall, Cespedes trained with Edgar Mercedes, an agent and owner of the Born to Play baseball academy in the Dominican Republic.
"I've been working out for the last seven months. I feel I'm in very good shape and ready to take on this challenge," Cespedes said. "I feel I can make any adjustment I need to make to play in the big leagues."
He said he feels he can withstand the rigors of a 162-game season because he always felt plenty strong after his 90-game seasons in Cuba were over. "So, that gives me the confidence to face this challenge of playing a longer season."
As for acclimating to a new environment off the field, Beane said the Athletics will pair Cespedes with a mentor who will help him learn English and adjust to his new surroundings.
Already, Ramirez, with a locker next to Cespedes, has taken the newcomer under his wing.
"I already talked to him briefly this morning and he was very friendly with me, inviting me to work together this spring training and to spend some time in the cage talking about hitting," Cespedes said.
He brushed off the notion that his big contract will put pressure on him, saying, "All I know is I have to play regardless. I'm here to play baseball. I'm here to do my best, and to give 100 percent on the field regardless of the money."
He said he'd like to hit at least .280 but as far as power, all he had to say was, "I expect good numbers."
Cespedes and his agent, Adam Katz, declined to go into details of Cespedes' defection from Cuba.
Asked if he thinks he'll miss his homeland, Cespedes said, "I have family members in the Dominican and that gives me a chance to have good communication with them."
Amid all the buzz, one of his teammates wasn't excited to watch him hit Sunday.
"To tell you the truth, I don't really care about his BP," fellow outfielder Jonny Gomes said. "I've played long enough to see some of the best BP not make it out of A-ball, you know? But yeah, I'm just curious to see his talents and how they come over into the game."
Gomes said he knows all about being an outsider trying to fit in after playing winter ball in Mexico earlier in his career, so he said he expects Cespedes' adjustment to be more off the field than on it.
The stadium, he said, will be his sanctuary.
"At the end of the day, it's still baseball," Gomes said. "There's nine innings, six outs to an inning, and the home runs count."
Follow AP Sports Writer Arnie Melendrez Stapleton on Twitter: http://twitter.com/arniestapleton
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