John Michael Gyllenborg is listed at TE on the Kansas City Chiefs roster checked September 20, 2026. The official source lists the roster status as Reserve list (RES).
The details below are dated roster facts. Roster status, practice participation, and game-day availability are different; this profile does not turn one into another.
Current roster identity is not yet resolved. This does not establish a release, trade, retirement or injury.
| Observation window | Record date | Team | Roster status | Effective date | Record |
|---|---|---|---|---|---|
| Dated observation | Sep 20, 2026, 7:00 am EDT Observed | Kansas City Chiefs | Reserve list (unspecified) | Not supplied | Dated roster |
Weekly rows describe the supplied week, not a dated transaction. Observed dates show when a record was checked, not when a contract or roster move took effect. Conflicting records remain separate. Only retained observations are shown; game-day status belongs to the availability report.
Cleveland's quarterback and running back lost nearly $30,000 combined for a celebration against Pittsburgh, while TreVeyon Henderson and Jarrian Jones were also docked for Week 4 plays.
The veteran receiver's agent expects a signing within days, a year after a severe knee injury, and Kansas City is among the teams in contact after losing two wideouts in Las Vegas.
The receiver dislocated his ankle on a 55-yard catch in the 30–27 win over the Raiders and faces three to four months of recovery, leaving a narrow path back for the postseason.
