Kansas City, Mo. ? Early in the third quarter, Larry Johnson rumbled up the middle for a two-yard gain, his 12th carry against the Oakland Raiders.

It turned out to be Johnson’s last – and he didn’t like it.

Unhappy with his role in a dismal offense, Johnson lashed out at Kansas City’s coaching staff and front office Sunday, saying he didn’t see himself being a part of the team in the future.

“Something’s going on – I just don’t know what it is,” Johnson said after a 23-8 loss to Oakland in the Chiefs’ home opener. “I’m going to sit down and talk with someone.”

A two-time Pro Bowler, Johnson joined Eric Dickerson and Terrell Davis as the only players to rush for over 1,750 yards in consecutive seasons. He’s third on Kansas City’s all-time rushing list in just his sixth season and has been known as a workhorse back, owning Chiefs records for carries in a season (416) and a game (39 in 2006).

Johnson played just seven games last season due to a foot injury and enhanced his reputation for being sullen and brooding by questioning the coaching staff’s decisions.