Dikembe Mutombo’s number 55 will no longer be worn in Denver.

Over the weekend, the Denver Nuggets retired the 4-time Defensive Player of the Year’s jersey. Mutombo, who was selected by the team with the fourth overall pick in 1991, played in Denver for 5 seasons. While there, he was selected for the All-Star game three times, and also helped the team make the playoffs twice (this includes the 1993-94 playoff run, where they upset the top-seeded Seattle Sonics). Mutombo also led the league in blocks 3 times while he was playing for the Nuggets.

Prior to the Nuggets facing off against the Portland Trailblazers (Denver loss 113-115 in overtime, if you’re wondering), they held a ceremony to retire Mutombo’s jersey. Check it out:

Mutombo averaged 12.9 points, 12.3 rebounds, and 3.8 blocks with the Denver Nuggets. He was part of the 2015 Naismith Memorial Basketball Hall of Fame class.

Also, check out "Mount Mutombo's" top blocks of his career: