The Big Unit was 1-2 with a 2.38 ERA in four spring training starts. He faced minor leaguers twice and missed one start because of biceps tenderness.

"I feel good where I'm at now," said the 45-year-old lefty, five wins short of 300. Every pitcher goes through a tired arm, whether you are my age or 25. I'm not Nostradamus. I don't know if I'll have it again."

Johnson will make his last exhibition start Thursday against Oakland in the Bay Area series before pitching in the Giants' second regular-season game April 8 against Milwaukee.

He struck out two and walked two Sunday, when he threw first-pitch strikes to 16 of his first 17 batters while being caught by Bengie Molina.

"I went deep in the count, I pitched seven innings, and Bengie and me got to work more," said Johnson, whose fastball was clocked in the high 80s (mph). "My main objective was to get up and down as many times within reason. I am trying to fine-tune everything. I feel better about my off-speed stuff."

Johnson, 11-10 with a 3.91 ERA for the Arizona Diamondbacks last season, is 295-160 in his 21-year major league career. He is trying to become the 24th pitcher in big league history to reach 300 wins, the fifth since 1970.