Three-time NBA All-Star led the Suns to the 2021 NBA Finals.
Booker, 26, also clinched a gold medal on the US Olympic team in Tokyo 2020.
In the same year as Booker's extension contract, Karl-Anthony Towns signed a four-year $224 million supermax extension with the Minnesota Timberwolves.
The 27-year-old Dominican-American received three All-Star selections (2018, 2019, 2022) and went on to be named NBA Rookie of the Year for 2015-16.
- STEPHEN CURRY - $53.8 MILLION
NBA superstar Stephen Curry's huge contract extension with the Golden State Warriors last year netted him an average salary just shy of $54 million after making a $215 million extension.
Since starting in the league in 2009, Curry has been with the squad when the Warriors won four-time NBA championships and has also been an eight-time NBA All-Star.