[4] A three-year starter and two-year team captain, Niang capped off his career as one of the greatest players in the Tilton School history, amassing a school-record 2,372 points.

[6] He played for the Boston-based BABC AAU team, the same program that featured former Cyclone and NBA player Will Blalock.

Niang was considered one of the best players on the East Coast, ending his prep career as a consensus national top-100 recruit.

In the second round of the 2014 NCAA tournament, Niang broke the fifth metatarsal in his right foot, forcing him to sit for the remainder of the event.

[10] As a sophomore, he averaged 16.7 points and 4.5 rebounds as the third-most-prominent offensive weapon for Iowa State behind Melvin Ejim and DeAndre Kane.

[16] He joined the team for the 2016 NBA Summer League, where his early play drew praise from Larry Bird.

[18] During his rookie season, he had multiple assignments with the Fort Wayne Mad Ants of the NBA Development League.

On January 14, 2018, Niang signed a two-way contract with the Utah Jazz to take up a spot previously held by former college teammate Naz Mitrou-Long.

[23] Throughout the rest of the season, he split his playing time between the Jazz and their NBA G League affiliate, the Salt Lake City Stars.

[28] On January 17, 2024, Niang scored a new career high of 33 points against the Milwaukee Bucks, making 13 of his 14 shots attempts.