On November 1, 1964, he had the best game of his career against the Los Angeles Rams, catching seven passes for 165 yards. Three weeks later, he suffered a shoulder injury that required surgery and resulted in his missing the remainder of the season. Cogdill totaled 45 catches for 665 yards in 11 games in 1964. At the end of the 1964 season, Cogdill criticized the Lions' coaching staff, expressed a desire to be traded, and added: "I feel dead around here. I used to enjoy playing football but not anymore. I've lost all my incentive."