Collier attended St. Anthony High School, was a four-star recruit and a consensus top 150 prospect rating 76th overall in ESPN. In his freshman year, he averaged 17.0 points and 8.0 rebounds.[3]
College career
Collier played for the Oregon State Beavers men's basketball team, In his freshman season, he averaged 7 points, 4.4 rebounds and 0.7 assists per game.[4] In his sophomore season, he averaged 13.1 points, 5.2 rebounds and 1.8 assists. In his junior year, he averaged 12.6 points, 6 rebounds and 1.6 assists per game.[5] In July 2013, Collier was suspended indefinitely for violating team rules, though he only missed a game.[6] In his senior year, he averaged 13.4 points, 5.6 rebounds and 1.5 assists per game.[7]
Professional career
In 2014, he signed for the Puerto Rican side Caciques de Humacao where he averaged 8.7 points, 7.2 rebounds and 0.9 assists per game.[8] In his second season at Caciques de Humacao, he averaged 13.7 points, 5.9 rebounds and 2.4 assists per game[9] In the 2015–16 season, he moved to the Israeli side Hapoel Galil Elyon where he averaged 22.4 points, 8.3 rebounds and 3.4 assists per game, playing 12 games.[10] In the 2016–17 season he moved to the Puerto Rican side Indios de Mayagüez where he averaged 12.9 points, 7.9 rebounds and 2 assists per game.[11] In the 2017–18 season, he moved back to the Caciques de Humacao where he averaged 9.3 points, 7.3 rebounds and 2 assists per game[12] playing three games before moving to the French team Poitiers Basket where he averaged 12.1 points, 5.4 rebounds and 2.1 assists per game.[13][14] He moved to the Capitanes de Arecibo in the 2018–19 season, where he averaged 6.4 points, 4.3 rebounds and 1.1 assists per game.[15][16]
National team career
Collier represented the Puerto Rican national basketball team at the 2019 FIBA Basketball World Cup where he averaged 5.8 points, 4 rebounds and 0.4 assists per game.[17]