Mike Vrabel has turned down an offer to become the San Francisco 49ers' defensive coordinator.

Vrabel has been linebackers coach of the Houston Texans over the past two seasons.

Bill O'Brien and general manager Rick Smith worked hard behind the scenes to keep Vrabel and will give him a new contract, the Houston Chronicle reported, citing sources.

Vrabel met with new 49ers coach Chip Kelly on Tuesday before declining the job, the Chronicle reported.