The Giants have spent weeks working on a plan to have Matt Cain make one final start for them this weekend. Cain announced Wednesday that Saturday's appearance will actually be the last one of his big league career.

Before the final road game of his 13th big league season, Cain told his teammates that he will retire. He announced his intentions to the media a few minutes later.

The 32-year-old was a first round pick for the Giants in 2002 and made his MLB debut in 2005. The longest-tenured Giant has 104 career wins and a 3.69 ERA. He threw a perfect game in 2012 and saved his best for the biggest moments. In eight postseason starts, Cain had a 2.10 ERA. He pitched the clinching game in all three series during the 2012 title run.

Cain made three All-Star teams and finished in the top 10 of the Cy Young Award voting twice before arm injuries slowed his career. He has dealt with several ailments since winning the second of three titles, but throughout, Cain has been one of the most respected players in the clubhouse and a sounding board for waves of young pitchers.

When he announced on Tuesday that Cain would make one more start, manager Bruce Bochy said it would be a special day for the entire organization.