NASHVILLE, Tenn. (AP) — The Tennessee Titans now are without their top two receiving threats this season, releasing wide receiver Rishard Matthews after they couldn't trade the veteran.

General manager Jon Robinson said Thursday morning that Matthews talked with him last week about being unhappy, then came to him Monday requesting to be traded or released. The Titans talked with several teams, but Robinson said nothing came from those discussions with Matthews unhappy over his role in the offense.

The Titans currently are without three-time Pro Bowl tight end Delanie Walker who broke his right ankle in the season opener.

Matthews was one of the first free agents signed by Robinson after he became Tennessee's general manager in 2016. The wide receiver led the Titans with 1,740 yards receiving and 13 touchdowns combined over the past two seasons and started 20 of 30 games in that span.

Coming off injuries that limited him through the offseason and preseason, Matthews had not started once. He also had only three catches for 11 yards.

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