Winnipeg Blue Bombers have added more depth to their receiving corps, if there is a 2020 CFL season.The defending Grey Cup champions announced on Thursday that they have signed American Mekale McKay, whose negotiation list rights were originally acquired in a trade with Hamilton in 2016 in exchange for defensive back Johnny Adams.McKay is a 26-year-old native of Louisville, Ky., who played for the University of Arkansas before transferring to Cincinnati following his freshman year.