SAN FRANCISCO — The Big Unit is heading home to the Bay Area.

Randy Johnson and the San Francisco Giants agreed to a one-year contract Friday, meaning the 45-year-old pitcher will go for his 300th win with a new team.

Johnson, a 21-year big league veteran who spent the past two seasons with the Arizona Diamondbacks, was born in Walnut Creek, Calif., about 30 minutes from the Giants' waterfront ballpark.

The five-time Cy Young Award winner has 295 victories after going 11-10 with a 3.91 ERA in 30 starts last season.