Gordon had previously planned to return at some point in October, but circumstances have changed and Gordon senses the best way to show his value is on the field, a source told ESPN's Josina Anderson.
He must report no later than Nov. 29 to play in 2019 and accrue credit for this season toward becoming a free agent in the offseason.
Gordon, 26, continues to hold out because of a contract impasse with the Chargers. Gordon's representation was granted permission by the Chargers to pursue a trade, but so far no deal has materialized.
Gordon is scheduled to make $5.605 million in the final season of his rookie deal. Just before the season, Chargers general manager Tom Telesco announced that the team had postponed negotiations with Gordon until after the season. If Gordon chooses to report, he will play under his current contract.
Gordon wants a contract extension that will compensate him similarly to top backs Todd Gurley, David Johnson and Le'Veon Bell, who earn an average of $13 million to $14 million annually. During training camp, the Chargers offered Gordon a new contract that would double his salary at roughly $10 million annually.
The former first-round draft pick has rushed for 3,628 yards and has 1,577 receiving yards with 38 total touchdowns in his first four seasons.
ESPN's Eric D. Williams contributed to this report.