On July 31, 2018, Kell officially started his professional career by signing with the Bosnian team Igokea. He chose Igokea over offers from nine other European teams. Kell was released a month later due to a knee injury and joined the Moncton Magic of NBL Canada midway through the season. He was named MVP of the Finals as the Magic defeated the St. John’s Edge in the clinching game behind 41 points, nine rebounds, six assists and three steals from Kell. In September 2019 he signed with the Eastern Long Lions of the ASEAN Basketball League. In three games, Kell averaged 31.3 points, 8.3 rebounds, 5.0 assists, 1.0 steal and 1.0 block per game. He left the team on January 4, 2020.
