The NFL fined Seymour $30,000 for punching Miami offensive lineman Richie Incognito in the Dolphins' 34-14 win over Oakland on Sunday, according to a league spokesman. Seymour was ejected for the offense. It is the third time in Seymour's three seasons in Oakland -- he was acquired in a trade with New England in Sept. 2009 -- that he was ejected from a game.
Last season, Seymour was fined $25,000 after being ejected for slapping and knocking down Pittsburgh Steelers quarterback Ben Roethlisberger. In 2009, he was fined $10,000 after he was ejected for an offense against Cleveland Browns running back Jerome Harrison.
Seymour has now been fined at least $60,000 for offenses this season. He agreed to a two-year extension with Oakland earlier this year worth up to $30 million.
Bill Williamson covers the AFC West for ESPN.com.