Miami Heat guard Tyler Herro -- the 2022 NBA Sixth Man of the Year -- has agreed to a four-year, $130 million contract extension, his agents, Jeff Schwartz and Mike Lindeman of Excel Sports, told ESPN on Sunday.

After averaging 20.7 points a season ago, Herro, 22, lands an annual salary worth over $30 million for his rookie scale extension ahead of the Oct. 17 deadline for members of the 2019 NBA draft class.

The deal includes $120 million guaranteed with incentives that can bring the contract to a full $130 million, sources said.

Herro -- chosen 13th overall -- is the sixth first-round player in the draft class to agree on a rookie extension. That list includes the top three picks: New Orleans' Zion Williamson, Memphis' Ja Morant and New York's RJ Barrett.

Herro is a cornerstone player for the Heat's championship aspirations, joining Bam Adebayo and Jimmy Butler as $100 million-plus players on the Heat's roster. Herro had eight 30-point games off the bench for the Heat last season, the most in a season for any player since Lou Williams in 2018-2019, according to ESPN Stats & Information research.

Herro and Utah's Jordan Clarkson were the only players last season to score 1,000 points or more off the bench last season.

As a second-team All-NBA rookie in 2020, Herro had a memorable stretch in the NBA bubble during the Heat's run to the Eastern Conference championship, scoring 335 points, fourth most by a rookie in the postseason, according to ESPN Stats & Information research.