Phoenix Suns star and former number one draft pick Deandre Ayton was among a number of players who did not sign rookie contract extensions before the deadline.

Monday was the deadline for the 2018 draft class to pen new deals with their respective teams in the NBA.

Malcolm Brogdon of the Indiana Pacers (two-year, $45million), Memphis Grizzlies star Jaren Jackson Jr. (four year, $105m), Kevin Huerter of the Atlanta Hawks (four-year, $65m), Suns guard Landry Shamet (four-year, $43m) and the Milwaukee Bucks' Grayson Allen (two-year, $20m) all extended their contracts.

However, there were some notable names missing, including Ayton – who can enter restricted free agency next year, according to ESPN and Adrian Wojnarowski.

Ayton played a key role in Phoenix's run to the NBA Finals last season, however, the Suns did not come to the table as the 23-year-old center eyed a five-year max contract.

In 2020-21, Ayton averaged 14.4 points, 10.5 rebounds and 1.4 assists per game, while he boasted a career-best 62.6 field-goal percentage and career-high 76.9 percentage from the free-throw line.

Ayton's numbers elevated in his first playoff campaign – 15.8 points and 11.8 rebounds per game, though his future in Phoenix is now uncertain.

Cleveland Cavaliers star Collin Sexton also failed to reach a contract extension agreement with the Eastern Conference strugglers.

Sexton did not land a new deal, despite career highs in points (24.3), assists (4.4), rebounds (3.1) and field-goal percentage (47.5).

The other players without contract extensions are Miles Brides of the Charlotte Hornets, the Orlando Magic's Mo Bamba, Marvin Bagley III of the Sacramento Kings and New York Knicks forward Kevin Knox.