Reading chief Nigel Howe is delighted with Matt Miazga's return to the Madjeski.
The Chelsea defender has signed a season-long loan with the Royals following a successful six-month stint with the club last season.
"Even as a player at the early stage of his career, Matt showed last season that he has a mature head on young shoulders and plenty to offer the squad both on and off the pitch," Reading CEO Howe told the club's website.
"I am pleased that he has been keen to return to Reading and I look forward to seeing his contribution for the Royals in the coming season."