Coming off their win over the Bills the Chiefs flew to Oakland-Alameda County Coliseum for an AFC West division rivalry match against the Raiders. In the 2nd quarter the Chiefs took the lead as QB Matt Cassel made an 11-yard TD pass to WR Verran Tucker; followed by kicker Ryan Succop nailing a 43-yard field goal. In the 3rd quarter the lead was narrowed as WR Jacoby Ford returned a kickoff 94 yards for a touchdown. the Chiefs responded with Succop hitting a 25-yard field goal, but the Raiders replied with QB Jason Campbell throwing a 2-yard TD pass to Khalif Barnes, and with kicker Sebastian Janikowski making a 23-yard field goal. The Chiefs got the lead back after Cassel found WR Dwayne Bowe on a 20-yard TD pass, but the lead didn't last very long after Janikowski got a 41-yard field goal. The decision was made to go to overtime when Janikowski successfully hit a 33-yard field goal to give the Chiefs a loss.
Question: Which teams were playing a AFC West division rivalry match?
Answer: Raiders | Chiefs