Former England defender Martin Keown has said that Fabian Delph should be praised for his "brave" decision to join Manchester City.
Keown told PA: "People change their mind don't they? It is what happens - he wouldn't be the first person to turn down an opportunity, regretted it and then worked hard to change it and he has been brave enough to do that.
"It is a good signing for City - they want to buy British - he made his England debut last season and settled in well, he is a driving force from midfield, but it is a huge blow for Aston Villa."
Keown spent four years at Villa before joining Everton in 1989.