Aston Villa have signed Aaron Tshibola from Reading on a four-year deal.
The 21-year-old came through the ranks at the Madejski Stadium, joining the club as a 13-year-old before signing as a professional three years ago.
Tshibola spent a year on loan at Hartlepool during the 2014-15 campaign before making 12 Championship appearances for the Royals last term.
Tshibola has made one appearance for England's Under-18 side.