SAN DIEGO — It’s lost somewhat in all of the big plays by the Raiders’ offense and all the garbage-time scores by the Chargers, but don’t forget the running game. Latavius Murray and Taiwan Jones just needed a little rest to get going.

Murray, a bye week all the salve his injured shoulder needed, ran for 85 yards on 15 carries (5.7 a pop) and Jones added 35 yards rushing and 17 receiving.

“We got a lot of guys healthy from the bye week and we were just anxious to put together four good quarters,” Jones said. “Latavius and I benefited a lot from the bye week and you can see it paid off.”

Murray scored right away, after Malcolm Smith’s interception, and then had a 14-yard run on the Raiders’ next possession. Oakland scored all six times it had the ball in the first half.

The offensive line “was just moving people up front and getting us to the second level,” Murray said.

Offensive coordinator Bill Musgrave did a nice job of mixing Murray’s power and Jones’ speed.

“All kudos to Musgrave,” Jones said. “He sees what we bring to the table and he uses us a little differently, and it’s been working.”

Ball injured: Promising rookie linebacker Neiron Ball injured his knee in the second quarter and didn’t return. Head coach Jack Del Rio said Ball would be evaluated and didn’t have any other information.

Ball did a nice job covering tight ends the past two games, solving what had been the Raiders’ biggest defensive problem. And all of San Diego tight end Ladarius Green’s four catches (including his touchdown) came in the second half after Ball had left.

Playoffs? The Raiders are in second place in the AFC West and Del Rio is cool with the P-word.

“We talked from Day 1 about our No. 1 goal is to win the division,” he said. “You have to win in the division to have a chance to win the division. We don’t sit and fixate on it every day. We can see the numbers. … But for us, it’s just about the process of playing good football.”

Be like Cooper: Receiver Michael Crabtree enjoyed the Amari Cooper Show like everyone else, and then he made a highlight-reel play of his own. Crabtree showed off his moves and broke a couple of tackles to get into the end zone on a 25-yard reception in the third quarter.

“I was inspired by Amari Cooper,” Crabtree said. “It was a good play … It’s all about coaching. Just doing what I have to do to score. We needed a little more of that this year.”

Crabtree finished with 63 yards on a team-high six catches and atoned for his first-quarter drop of Derek Carr’s deep pass.

Foot off the pedal: The 23 fourth-quarter points the Raiders surrendered were the most they allowed since giving up 25 to the Chargers in Lane Kiffin’s final game in 2008.

Vic Tafur is a San Francisco Chronicle staff writer.