Kasey Palmer and Dujon Sterling have both left Chelsea, with the former signing for Bristol City in a permanent deal and the latter heading to Wigan Athletic on loan.
City have snapped up midfielder Palmer after he spent the second half of last season on loan with the Championship side, scoring twice in 17 games as they finished eighth in the table - four points outside of the play-offs.
Palmer joined Chelsea from the Charlton youth academy six years ago and was subsequently sent out on loan to Huddersfield Town, Derby County and Blackburn Rovers before his short spell at Ashton Gate.