Date of birth
Reds signed powerful central defender Joe on a two-year contract in July 2015 from Woking, where he made more than 250 appearances and won an England C cap.
A succession of knee injuries restricted him to 13 appearances in his first season with the club, although he did score his first League goal in April 2016 against Oxford United.
Like Glenn, Joe also signed a new deal in March 2017 - a two-year contract with the option of an extra year.
Joe made 35 appearances last season and found the back the net with his head on three occasions.