NFL.com's Ian Rapoport and Albert Breer reported Saturday, citing a team source and a source close to McKelvin, that the talented return man have signed a four-year contract worth between $17 million and $20 million. The deal comes with $7.5 million in guarantees. FOXSports.com's Alex Marvez first reported the pact.
McKelvin turned out an NFL-best 18.7 yards on 23 punt returns in 2012. Two of those went for touchdowns. He produced 28.3 yards on 18 kickoff returns and brought electricity to the Bills' special teams unit.
McKelvin has emerged as one of the NFL's most dangerous return men, but it was believed he might bolt from Buffalo for the chance to play more cornerback elsewhere. He started just four games in the Bills' defensive backfield last season, pulling down one interception.
UPDATE: McKelvin's contract extension became official, the team announced Monday.