Huddersfield Town have signed Aaron Mooy, who enjoyed a successful loan spell at the club last season for a club record £8 million.
David Wagner signs new two-year contract to stay at Huddersfield Town
Purchase of the stadium was outlined as a top priority by new owner Andrea Radrizzani.
The Polish international says he will create some "good stuff on the pitch" and is "not afraid to fight" after joining from FC Twente.
Rotherham United have sold last season's top scorer Danny Ward to Cardiff City for an undisclosed fee.
Leeds United have completed the signing of Polish international Mateusz Klich on a three year contract for an undisclosed fee
Hull City defender Harry Maguire has joined Premier League side Leicester City for an undisclosed fee.
Former Barcelona striker and APOEL boss has been appointed as the new Leeds United manager.
Leeds have been on the lookout for a new boss after Garry Monk left the club last month.
The Terriers secured their place in the top-flight last month, for the first time since 1972.