What Mikal Bridges' extension means for the Phoenix Suns and the future of Deandre Ayton

Mikal Bridges' best plays from last season (2:03)

Relive Mikal Bridges' top highlights from last season with the Suns. (2:03)

The start of the 2021-22 NBA league year not only meant the beginning of free agency but also extensions for former first-round picks entering the fourth and final season of their rookie contracts.

The 2018 draft has provided a particularly plentiful class of rookie extensions. After Luka Doncic, Trae Young and Shai Gilgeous-Alexander all signed max extensions earlier this summer, the Boston Celtics became the first team to sign a 2018 pick to a non-max extension, locking up center Robert Williams III.

Which extensions look likely to age best and which might be mistakes? Let's break them all down here.

Phoenix Suns

Agreed to a reported four-year, $90 million extension with forward Mikal Bridges

The day before the deadline for NBA teams to sign eligible former first-round picks entering their fourth seasons to contract extensions, the Suns agreed to a deal with one of their two eligible starters.