Buffalo Bills wide receiver Percy Harvin has promised that he will "explode" back into life in the NFL in the 2015 season.

The 26-year-old has struggled with injuries for the past three seasons as he has bounced around three clubs, including the Seattle Seahawks, before landing with the Bills on a one-year deal.

Harvin is confident that he will produce the best season of his career with Rex Ryan's men in the 2015 campaign.

He told reporters: "The world has yet to see me really explode like I'm about to."

Harvin has recorded 332 receptions for 3,802 yards and 21 touchdowns in his six-year NFL career.