Raiders after the Herald had reported that Seymour felt "blindsided" by the trade. Seymour said there were "personal issues" concerning his family and that an NFLPA grievance filed on his behalf, which claimed the Raiders were not allowed to send him a five-day letter, was a "procedural thing." The NFLPA dropped the grievance shortly after, calling it a "moot point." He did report to the team on September 12, and started in the team's first game on September 14 in which he recorded six tackles and sacked Chargers quarterback Philip Rivers twice. He went on to start all 16 games of the 2009 NFL season, recording 47 tackles and four sacks on the year. 2010 season On February 24, 2010, the Raiders gave Seymour the franchise tag. The Raiders and Seymour negotiated a long-term contract, but Seymour opted to sign a one-year deal worth $12.4 million on June 19, 2010. Throughout the 2010 NFL season, he was a starting left defensive tackle next to Tommy Kelly on the Raiders defensive line. He was ejected during a game in Pittsburgh on November 21 for punching Steelers QB Ben Roethlisberger. He was later fined $25,000 for his actions. For his play, Seymour was selected to his sixth career Pro Bowl, but did not play due to a hamstring injury and was replaced by Kyle Williams. 2011 season On February 17, 2011, Seymour agreed to a two-year, $30 million contract extension, making him the highest paid defensive player in the NFL. On opening day of the 2011 NFL season, still at left defensive tackle next to Tommy Kelly, he recorded 2 sacks and 3 tackles as the Raiders defeated the Denver Broncos. He recorded 29 tackles and 6 sacks during the season. Seymour was one of four Raiders selected to attend the 2012 Pro Bowl. 2012 season On November 2, Seymour was fined $15,750 for hitting his former teammate, Kansas City Chiefs quarterback Matt Cassel. On February 8, 2013, the Raiders voided the rest of Seymour's contract, effectively making him a free agent. The contract stipulated if Seymour did not meet a certain amount of allotted playing time the Raiders would have the option of voiding the final year of the deal. Due to an injury, he missed the final eight games of 2012 and was not able to meet the required amount of playing time. He was set to make $19.12 million