Date of birth
Republic of Ireland
Greg joined on a season-long loan deal to become Rovers' sixth signing of the summer.
On Manchester City's books as a youngster, Cunningham made five appearances for the Premier League side and enjoyed loan spells in the Championship with Leicester City and Nottingham Forest.
In July 2012, Cunningham made a permanent move to Bristol City, where he would make over 100 appearances and played alongside Derrick Williams.
After helping the Robins secure promotion to the Championship in 2014-15, Cunningham joined Preston North End in July 2015.
The dependable defender became a firm fixture at Deepdale over the next three seasons, starting over 100 Championship games, before making a £4m move to Cardiff in June 2018.
The Republic of Ireland international, who has earned four caps for his country, made seven Premier League appearances for the Bluebirds last season, ahead of his summer switch to Ewood Park.
Having featured heavily under Tony Mowbray, the popular Irishman suffered injury heartbreak at Queens Park Rangers, with an anterior cruciate ligament injury ending the 28-year-old's season early.