J.J. Watt is set to become the NFL's highest-paid defensive player.

The Houston Texans defensive end agreed to a six-year, $100 million contract extension, the Houston Chronicle's John McClain reported early Tuesday.

The deal includes a guaranteed $51,876,000, according to the newspaper.

The previous highest-paid defender in league history was defensive end Mario Williams, who left the Texans to sign a six-year, $96 million deal with the Buffalo Bills in 2012. Williams' contract guarantees him $50 million.

The Texans will hold a press conference Tuesday to announce the deal, the Chronicle reported.

Watt was set to make $1.9 million this year before reworking his contract. The new pact starts in 2016 and runs through 2021.

The 11th overall draft pick in 2011, Watt started all 48 games through his first three NFL seasons. He recorded 5.5 sacks as a rookie, then 20.5 in 2012, when he was selected the league's Defensive Player of the Year. He made 10.5 sacks last season, when he also forced four fumbles for the second year in a row.