JONATHAN GANNON has issued a groveling apology after his sideline scolding of Emari Demercado.

The Arizona Cardinals head coach clashed with the running back after he made a calamitous error in Week 5 .

The incident occurred late on in the Cardinals' 22-21 defeat to the Tennessee Titans on Sunday.

Demercado, 26, looked to be on his way for a 72-yard touchdown in the fourth quarter.

If he had scored, then the Cardinals would have taken a commanding 28-6 lead at State Farm Stadium.

However, he fumbled the ball just one yard short of the inzone after celebrating too early and the chance went begging.

The error saw the Titans rejuvenated and storm back into the contest with 16 points without reply to claim their first win of the season.

Gannon, 42, was seething on the touchlin

See Full Page