The Miami Dolphins are reportedly confident that they will be able to sign impending free-agent defensive tackle Ndamukong Suh.

The Dolphins are understood to be in the race to sign Suh, but will face stiff competition from the likes of the Oakland Raiders and Detroit Lions.

The three-time All-Pro has not yet ruled out the possibility of returning to Detroit, but after a failure to agree on an extension it appears as though he will enter the free agency market.

Teams are officially allowed to court free agents starting on Saturday, with the market opening for business on Tuesday evening.

Suh is expected to be one of the most sought after free agents available, with the Chicago Bears also linked with an interest.