According to the Associated Press, San Francisco Giant’s second baseman Freddy Sanchez has undergone left-shoulder surgery, and it is unclear if he will be ready by Opening Day.

“He’s going to be a little delayed,” Giant’s Manager Bruce Bochy said. “It’ll be close if he can go Opening Day or not.”

Sanchez, 32, was bothered by injuries to his left shoulder and left knee last season after joining the Giants at the trading deadline and played in only 25 games with San Francisco.

Sanchez signed a $12 million, two-year contract extension Oct. 30. He had surgery in early October to repair a torn meniscus in his left knee.

Sanchez was acquired by the Giants from the Pirates  in July 2009. Although unlikely, one Giant’s fan on Twitter wonders if the Pirates had shipped damaged goods to the Giants.

The Giant’s have a young core of infielders such as Emmanuel Burriss, Eugenio Velez and Kevin Frandsen to cover for Sanchez. However, it is likely that Juan Uribe will get the Opening Day start if Sanchez cannot return in time. It is unlikely the Giants will pursue a free agent second baseman like Orlando Hudson, Ronnie Belliard, Felipe Lopez or Adam Kennedy since they have almost maxed out their budget for 2010.