Injury report: 49ers' backups step up

DETROIT -- Linebacker Parys Haralson and right guard Adam Snyder sustained injuries that forced them out of the 49ers' lineup Sunday, but neither is expected to miss much time.Haralson played sparingly in the first half before sustaining a hamstring strain. Snyder was removed at the beginning of the fourth quarter due to a right shoulder stinger.In both cases, the 49ers got solid play from their backups in the 25-19 victory over the Detroit Lions on Sunday.

Rookie Aldon Smith played nearly every snap of the second half and responded with a huge game. Smith had two sacks in the game, including a safety of Lions quarterback Matthew Stafford in the second quarter.Smith also had a sackforced fumble in the middle of the fourth quarter that led to an 18-yard loss for the Lions. The 49ers used that swing in field position to score the go-ahead touchdown on their next possession.The 49ers mostly played nickel defense, and Smith lined up mostly at right defensive end. Smith played outside linebacker for his first meaningful snaps of the season in the team's base defense."It was different," Smith said. "The first snap I was nervous, and then I got more comfortable as the game went on."Smith also was asked to play pass coverage for the first time this season, and had a would-be interception slip through his hands."You saw me drop that pick," Smith said. "Yeah, I did more dropping."Chilo Rachal stepped in for Snyder at right guard early in the fourth quarter and held his own against Lions defensive tackle Ndamukong Suh. Rachal returned for his most extensive playing time since getting benched at halftime of the 49ers' Sept. 25 win at Cincinnati.Early indications are that Haralson and Sndyer will be available for action when the 49ers return to play Oct. 30 against the Cleveland Browns. The 49ers also expect wide receiver Braylon Edwards to be back after undergoing arthroscopic surgery on his knee on Sept. 19.