General manager John Mozeliak said the surgery in St. Louis is not an emergency procedure, and that he’ll have an idea today how long the 31-year-old outfielder will be sidelined.

Holliday was 3 for 4 and hit a go-ahead home run in the eighth inning of a 5-3, 11-inning loss to San Diego Thursday. Holliday left Busch Stadium complaining of stomach discomfort.

While Holliday is out, Jon Jay and Allen Craig are likely to share playing time in left field and Lance Berkman could move down one spot into Holliday’s cleanup role.

SF fan beaten after LA win A spat between fans turned violent when two men in Dodgers clothing severely beat a Giants supporter after the season opener between the rivals at Chavez Ravine Thursday. The attack left the victim in critical but stable condition as authorities asked any possible witnesses for help in identifying the assailants. Investigators also reviewed footage of the incident to see if any security camera captured it, but Detective Larry Burcher said so far they’d found “nothing of great value.’’

“We’re very confident there were witnesses, it happened immediately following the game when everybody was coming out,’’ Burcher said.

Police said the argument started when the two men in Dodgers clothing were exchanging barbed comments with three men in Giants gear as fans left after the Dodgers’ 2-1 victory, Detective T.J. Moore said. The Giants fans tried to distance themselves from their assailants, and two made it away from them, but one was struck with fists on the back of the head and, as he fell, his head hit the ground in Parking Lot 2, Moore said. Both attackers then kicked the victim and ran, Moore said.

DL for Orioles’ Matusz Baltimore lefthander Brian Matusz was scratched from his scheduled road start today against Tampa Bay because of soreness on the left side of his back and he will be placed on the disabled list. Matusz underwent an MRI that found a strain in a muscle between the ribs and the back. He will be sidelined up to four weeks. Chris Tillman will move up a day and start today, while promising lefthander Zach Britton will be recalled from Triple A Norfolk to make his major league debut tomorrow . . . The Blue Jays declined to pick up the maximum three option years on second baseman Aaron Hill’s contract before yesterday’s season opener against Minnesota. Hill, who hit .205 with 26 homers and 68 RBIs last year, will earn $5 million this season. His unique contract had $8 million options for 2012 and 2013 and a $10 million option for 2014. The Blue Jays had until the start of the season to pick up all three options. Toronto can still pick up one or two option years at the end of the season, but cannot pick up the 2014 option. General manager Alex Anthopoulos said with the way the option years are priced, he’d prefer to wait and see how Hill performs this season before making a decision . . . The Giants rewarded Freddy Sanchez with a new deal that adds a $6 million salary for 2012, securing a key member of the infield for the World Series champions. Sanchez, 33, signed a $12 million, two-year deal Oct. 30, 2009 . . . Outfielder Randy Winn, who made one All-Star team and was a career .284 hitter, retired after 13 seasons.