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Khalil Mack is among the best linebackers in the NFL. Thearon W. Henderson/Getty Images

The Oakland Raiders may have found a trade partner for star linebacker Khalil Mack. According to ESPN's Adam Schefter, the Raiders have a deal in place with the Chicago Bears. Details of the trade on Saturday were not announced.

Mack is seeking a new contract and the Raiders reportedly were not close to agreeing to a new deal. The 27-year-old is in the final year of his rookie contract worth $13.8 million.

Tom Pelissaro of the NFL Network reported Wednesday that Raiders general manager Reggie McKenzie was fielding calls for Mack. Pelissaro claims that the Raiders are seeking two first-round picks. Schefter noted that the trade for Mack would mean the Raiders will get more than the Kansas City Chiefs in April 2008 when they received a first-round pick and two third-round picks from the Minnesota Vikings for Jared Allen.

The Bears own all of their future first-round picks but traded away their 2019 second-round pick to the New England Patriots.

In 2017, the Bears finished 11th in rushing yards allowed (1,730).

Chicago has a history of great linebackers. Dick Butkus, Mike Singletary and Brian Urlacher are just a few of the names that have led the Bears' defense.

There were several teams interested in Mack, but the NFL Network's Ian Rapoport confirmed that the Bears had indeed acquired Mack.

Sources had told Mary Kay Cabot of the Cleveland Plain Dealer that the Cleveland Browns would inquire about trading for Mack. The Browns have made a stronger push to finally get into playoff contention in 2018 and 2019. The possible addition of Mack would have meant that he would be paired second-year defensive star Myles Garrett.

The Browns own all of their future first-round picks as well as the Patriots' third-round pick in 2019. Cleveland owns four total seventh-round picks.

The New York Jets were also thought to be a top contender to land the three-time Pro Bowler, according to ESPN NFL Nation reporter Rich Cimini. In a Twitter post Friday, Cimini wrote that the record contract for Aaron Donald may have opened up an opportunity for the Jets to trade for Mack.

Other teams that were reportedly interested in Mack include the Buffalo Bills, Indianapolis Colts, and Green Bay Packers, according to NFL Insider Jason La Canfora.