SAN FRANCISCO — 49ers security asked tailgaters to leave the parking lot at Candlestick Park after kickoff of Saturday's game against the Texans under security measures introduced after fan violence marred a game against the Raiders a week earlier.
Two men were shot in the parking lot after the Raiders game, and a man was beaten unconscious in a stadium bathroom. (Police have not made any arrests; all three victims were hospitalized in fair condition.) Also, a brawl in the stands involving several fans during the game was captured on video and replayed on the Internet.
Team security and San Francisco police patrolled the parking lots Saturday on foot and motorcycles, asking fans with tickets to enter the stadium. Others were asked to buy a ticket or leave.
Included on the patrol was NFL security chief Jeff Miller. He said the league is confident Candlestick Park will be a safe, secure venue this season.
"Preseason games across the league generally don't have the same fan base that attends the games throughout the season," said Miller, who praised police for engaging fans and making their presence felt early in the day.
"I really think a lot of the people who were here last weekend were not the true 49ers fans. They weren't the true Raiders fans. They were people who chose that evening event as their own crime scene. They came here with the intent of maybe drinking a lot and getting involved in things they shouldn't have."
Police planned to increase staffing by 10 percent with additional plainclothes and uniformed officers, Sgt. Michael Andraychak said.
The team also said it used postgame DUI checkpoints.
More 49ers: The team will meet with running back Frank Gore about a contract extension Monday for the first time, the Associated Press reported. Gore, who can become an unrestricted free agent after this season, has said he wants a long-term deal before the regular season starts.
Steelers lose backup QB: Steelers quarterback Byron Leftwich broke his arm against the Falcons. Coach Mike Tomlin did not say if the backup will miss the season.
Bears: Running back Marion Barber left against the Titans with a sore calf. His status was unknown. … Tight end Desmond Clark was carted off with a knee injury sustained on a hit by safety Anthony Smith. His status was unknown.
Bengals: Jordan Palmer, the No. 2 quarterback behind brother Carson last season, was waived. Newly signed Bruce Gradkowski is expected to back up Andy Dalton.
Broncos: Linebacker D.J. Williams, Denver's top tackler the past two seasons, left against the Seahawks with a sprained right elbow sustained while making a tackle. His status had not been determined.
Cowboys: Andre Gurode, a five-time Pro Bowl center, did not play against the Vikings despite being healthy and center Phil Costa out with a knee injury. Third-stringer Kevin Kowalski started. Owner and general manager Jerry Jones said only Gurode's status was under scrutiny for salary cap reasons.
Eagles: Receivers Jeremy Maclin and Steve Smith practiced for the first time. Maclin was cleared by doctors this month after being stricken by an unknown illness during the offseason. Smith had microfracture surgery on his left knee in December.
Jaguars: Backup running back Rashad Jennings left against the Bills with a knee injury sustained on a hit. His status was unknown.
Patriots: Receiver Wes Welker left against the Lions with a neck injury. The team did not say how he was hurt, and his status was unknown.
Texans: Starting running back Arian Foster left against the 49ers after aggravating a left hamstring injury that limited him during the first half of training camp. His status was unknown.
Stafford shines while Brady struggles
DETROIT — Matthew Stafford was sharp. Tom Brady struggled.
Stafford threw for 200 yards and two touchdowns in less than a half in helping the Lions beat the Patriots 34-10. He finished 12-of-14, with one pass dropped in the end zone
Brady was 12-of-22 for 145 yards. He skipped passes off the turf to open receivers, threw short and low to open Wes Welker on what could have been a touchdown, and hung up a pass intended for Chad Ochocinco that was intercepted.
Game highlights: Matt Schaub threw an interception on his first play but led the Texans to scores on their next three series of a 30-7 win at San Francisco. … Antonio Brown caught four passes for 137 yards and touchdowns of 77 and 44 yards and set up a touchdown with a long kickoff return to help the host Steelers beat the Falcons 34-16. In one half, Atlanta's Matt Ryan threw 42 passes, completing 22 for 220 yards, a touchdown and an interception. … The Bills' Ryan Fitzpatrick completed his first 11 passes, including two for touchdowns, in a 35-32 overtime home win over the Jaguars. He finished 11-of-12, his 165 yards.