LeSean McCoy is going from a rebuilding franchise in Buffalo to a Super Bowl contender in Kansas City, and he’s reuniting with his close friend and former coach Andy Reid, too.

The Chiefs and the two-time All-Pro running back have agreed to a $4 million, 1-year deal, a person with knowledge of the negotiations told The Associated Press.

McCoy would become the top backup to Damien Williams, likely siphoning carries from rookie Darwin Thompson and backup Darrell Williams. The Chiefs traded the other veteran running back that was expected to earn carries, Carlos Hyde, after he failed to impress during training camp and the preseason.

The 31-year-old McCoy spent his first six seasons in Philadelphia, four of them under Reid, before spending the past four seasons with the Bills.