Running back Melvin Gordon has informed the Los Angeles Chargers that unless he receives a new contract, he will not report to training camp and he will demand a trade, his agent Fletcher Smith told ESPN.

Smith said he and Gordon did not want to go this route, but because of the lack of progress in negotiations and the offers the Chargers made this offseason, they felt it necessary to voice their displeasure in an effort to reach a more satisfying outcome, whether with a new contract or a trade.

Gordon, 26, is scheduled to be heading into the last year of his contract, a fifth-year option worth $5.6 million.

Other top running backs -- Todd Gurley, David Johnson, Le'Veon Bell-- recently have received new deals, and Gordon wants to be the next one added to that illustrious list. He is unwilling to take a Chargers offer that does not put him near the salaries of those top running backs.