The Chargers are 8-4 after Sunday's 31-14 home win over the Raiders .

Here are five takeaways from Week 13.

1. Bolts get back on track

The Chargers earned their eighth win Sunday but the biggest storyline from Week 13 is that Justin Herbert will undergo surgery on Monday after suffering a broken bone in his non-throwing hand.

Herbert left the game for half a series before coming back in with a hard cast and a glove on his left hand.

"He's as tough as they come," said Chargers Head Coach Jim Harbaugh. "Taped it up, glove and played a great game."

So, too, did the Chargers, who overcame a sluggish first half to dominate the Raiders in the second half on the way to another double-digit win against their division rivals.

The Bolts — who bounced back from a Week 11 loss — looked

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