Michah Richards helped Manchester City to their first top-flight league title for 44 years when they won the Premier League in 2012.
He has been capped for England at senior, under-21, under-19 and under-16 level and was part of the Great Britain squad for the 2012 Olympics.
He spent a full season on loan at Italian club Fiorentina in 2014/15 before moving to Aston Villa.