Giannis Antetokounmpo has agreed to a supermax extension with the Milwaukee Bucks that takes the two-time reigning MVP off next summer’s free-agent market.

The 26-year-old Antetokounmpo had until Monday to sign the Bucks’ supermax extension offer. If he turned it down, Antetokounmpo could have become a free agent after the upcoming season.

The Athletic and Stadium reported that he agreed to a five-year extension worth $228 million that includes an opt-out clause in 2025.

His decision means the Bucks will hang on to their biggest star since Hall of Famer Kareem Abdul-Jabbar, who led Milwaukee to its lone NBA title in 1971, but demanded a trade and was dealt to the Los Angeles Lakers in 1975.

The Bucks paid a hefty price to revamp their roster this offseason in an attempt to persuade Antetokounmpo to stay. They dealt away guards Eric Bledsoe and George Hill, first-round draft pick R.J. Hampton and two more first-round selections as part of a package to acquire Jrue Holiday.

They also overhauled their bench by adding Bobby Portis, D.J. Augustin, Torrey Craig and Bryn Forbes. Antetokounmpo called those offseason moves “amazing” without indicating whether he planned to sign the extension.

Despite that regular-season success, the Antetokounmpo-led Bucks have yet to reach the NBA Finals. Milwaukee lost a second-round series in five games to Miami last season, with Antetokounmpo missing most of Game 4 and all of Game 5 with a sprained right ankle. In 2019, the Bucks reached the Eastern Conference finals and took a 2-0 lead over eventual NBA champion Toronto before dropping four straight.

Milwaukee selected Antetokounmpo out of Greece with the 15th overall pick in the 2013 draft. The 6-foot-11 “Greek Freak” has career averages of 20.1 points, 8.9 rebounds and 4.3 assists per game.

Last season, he averaged 29.5 points, 13.6 rebounds and 5.6 assists while winning his second straight MVP award. He also was named the NBA Defensive Player of the Year.