SANTA CLARA -- Two of the 49ers' top hitters took a blow to the pocketbook Friday. The NFL fined linebacker NaVorro Bowman $10,000 for unnecessary roughness and free safety Dashon Goldson $7,875 for his hit on a sliding quarterback during last weekend's game against the St. Louis Rams.
Both players said they planned to appeal.
"I'm not a dirty player," Goldson said.
His coaches agree. Though Jim Harbaugh did not defend the free safety's costly hit on Sam Bradford, a penalty that put the Rams in position for a late field goal, he had overall praise for the way Goldson walks the fine line between aggressiveness and recklessness.
"He's probably one of the best front-up tacklers in the game," Harbaugh said as the 49ers prepared for Sunday's game against the Miami Dolphins at Candlestick Park. "The penalties have been after the whistle. So that's the main thing -- pulling off the hit when the quarterback's sliding. Leaving it when the whistle stops.
"But he's done a great job. There haven't been any helmet-to-helmet penalties from Dashon. His technique and ability really have been outstanding."
Bowman's transgression stemmed from a hit on running back Steven Jackson on the game's second play from scrimmage. The linebacker declined to comment other than to confirm that he would appeal.
Still, Bush has the 49ers' attention. Defensive coordinator Vic Fangio worries about "one of those runs where he reverses field and looks like sandlot ball. You've got to be ready."
Bush, a teammate of Alex Smith when they were both at Helix Charter High in La Mesa, registered the only four-touchdown game of his career against the 49ers in 2006, when he was with New Orleans.
"He's very elusive, fast and quick," linebacker Patrick Willis said.
"Yes, I've seen progress from A.J.," Harbaugh said. "He's been on his assignments. He's executed well when he's been out there. So he's given great effort. Football rewards that effort."
Jenkins has been on the active roster twice this season, including last week against St. Louis, but has yet to play a snap.
"He's coming along," offensive coordinator Greg Roman said. "But you never truly find out until you get out in the game on Sunday afternoon."
Cam Inman contributed to this report. Contact Daniel Brown at email@example.com.
Miami (5-7) at 49ers (8-3-1), 1:05 p.m., CBS