Date of birth
Young full back Harvey made his first team debut for the U's in the Papa John's Trophy in the 2020/21 season.
Coming on as a second half substitute, Sayer came on in the 0-1 home defeat to West Ham U21s, replacing Miles Welch-Hayes.
He has been included in a number of first team squads throughout the 2020/21 season.
Sayer signed his first professional contract with the U's in January 2021, keeping him at Colchester United until 2023.