Key attended Atholton High School in Columbia, Maryland, and was named the 1986 Howard County Player of the Year.
[1] He was a four-year letter winner at Boston University (1986–90),[2] garnering America East Conference Player of the Year honors in 1990.
[4] In 1990, Key was close to making the roster of the Los Angeles Clippers and then played for the San Jose Jammers in the 1990–91 Continental Basketball Association (CBA) season, before taking his game overseas.
He went on to play until 2002 with stints in Austria (BK Klosterneuburg), Australia (Gold Coast Rollers), Germany (SV Tübingen, Steiner Bayreuth, Rhöndorfer TV, BSG Ludwigsburg, SG Braunschweig) and France (Étendard de Brest, Saint Quentin).
[11] In between the seasons in Germany, he served an assistant coach of the Indiana Fever of the Women's National Basketball Association (WNBA) in 2016 and 2017.