LOS ANGELES — Seattle Mariners third baseman Adrian Beltre will undergo surgery to have bone spurs removed from his troublesome left shoulder.

Beltre’s non-throwing shoulder was operated on in September for the same reason and has given him severe pain all season. The two-time Gold Glove winner made his decision before Saturday night’s 5-1 victory over the Dodgers, and he could be sidelined for six to eight weeks.
“I don’t think I’ll be able to help the team the way I want to because of the way I’m feeling right now,” said Beltre, who was 1 for 5. “It’s gotten to the point where it’s really painful. There were a couple of pitches tonight that I couldn’t get to because of the shoulder, so I think it’s probably better to go fix it and come back 100 percent.”
Manager Don Wakamatsu said after the game that Beltre would be in the lineup again in Sunday’s series finale if he’s up to it.
“He’s played with a lot of pain,” Wakamatsu said. “He’s a guy who brings a lot of presence to our clubhouse and a lot of presence to that lineup. And over the last three or four weeks, he’s really started to swing the bat. So we’re going to miss him a lot.”
Beltre, who also had surgery on his left thumb in September, is batting .259 with five homers and 30 RBIs. He’ll be going on the disabled list for the third time in his 12-year career and first time in five seasons with the Mariners.
Beltre, a free agent at the end of the season, established career highs in 2004 with a .334 average, 121 RBIs and a major league-leading 48 homers for the Dodgers despite playing the entire season with bone spurs in his left ankle. The home run total tied Mike Schmidt’s 1980 record for third baseman. He signed a five-year, $64 million with Seattle a few months later.
Beltre was held out of last Sunday’s 9-3 victory at Arizona by Wakamatsu, and X-rays on Tuesday confirmed that the bone spurs were back. He was 0 for 4 in Seattle’s 8-2 loss on Friday night.