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Luke Kuechly has been one of the NFL's best defensive players since entering the league in 2012. Now, he's being rewarded for his efforts.

Kuechly and the Carolina Panthers on Thursday agreed to terms on a five-year, $62 million contract extension, sources told NFL Media's Rand Getlin -- the richest deal ever for an inside linebacker.

A former Boston College standout, the 24-year-old 'backer made an immediate impact after the Panthers drafted him ninth overall three years ago. Kuechly was the NFL's Defensive Rookie of the Year in 2012, its Defensive Player of the Year a season later and a first-team All-Pro in both 2013 and 2014. His 473 tackles over that three-year span led the league.

Some more examples of Kuechly's dominance, courtesy of Getlin:

Kuechly and the Panthers open their season Sunday at the Jacksonville Jaguars.

Thumbnail photo via Jeremy Brevard/USA TODAY Sports Images