Bills free-agent quarterback EJ Manuel is expected to sign with the Raiders, per ESPN. (James P. McCoy/Buffalo News)

EJ Manuel's days with the Buffalo Bills finally appear to have come to a merciful end.

Manuel, whom the Bills made their first-round draft pick in 2013 and dubbed their franchise quarterback, is "likely signing with the Oakland Raiders," according to ESPN's Adam Schefter.

Schefter attributed the report to league sources.

The Bills had long decided not pick up the 2017 option in Manuel's contract, allowing him to become a free agent.

It didn't take long for the former Florida State standout to prove to be a major bust for the Bills. He lost his starting job to Kyle Orton after the fourth game of the 2014 season, and never got it back after he and Matt Cassel lost out in a three-way competition with Tyrod Taylor for the No. 1 spot before the 2015 season.

In four seasons, Manuel has played in 28 games, making 17 starts. He completed 58.3 percent of his passes for 3,502 yards and 19 touchdowns, with 15 interceptions.

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