Derek Cornelius is a Canadian professional footballer who plays as a defender. Born on November 25, 1997, in Ajax, Ontario, Cornelius has represented Canada at the international level. He began his professional career with Javor Ivanjica in Serbia before moving to Vancouver Whitecaps FC in Major League Soccer (MLS). Known for his strong defensive abilities and composure on the ball, Cornelius has also played for clubs in Greece and Sweden. He has been a part of the Canadian national team setup, contributing to their defensive line in CONCACAF competitions.