Raiders punter Marquette King received a fine of $18,231, a source told CSNCalifornia.com's Scott Bair.
In Oakland's loss to the Falcons last Sunday, King was flagged for a horse-collar tackle on punt returner Eric Weems.
A couple hours after the game, King tweeted:
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King is fifth in the NFL in punting average (51.3) but 24th in net average (38.3).
He signed a $16.5 million extension during the offseason, that reportedly includes $7.75 million guaranteed.