They still have other areas of the squad to strengthen and want to do more business before the return to pre-season training on July 1.
The transfer market is slowly cranking into life in the Championship, with the majority of deals done so far being Bosmans.
Here is a round-up of the latest transfer talk and rumours from the Championship.
1. Blades midfielder is demand
Sheffield United midfielder, who spent last season on loan at Hull City, is a target for Charlton Athletic. (the 72) Photo: Tony Johnson
2. Blackpool land defender
Blackpool have signed defender Oliver Casey from Leeds United. (Blackpool Gazette) Photo: Camerasport
3. Hull pull back from midfielder swoop
Hull City have pulled back from finalising a deal for Dan Crowley who is available after leaving Birmingham City. (Hull Live) Photo: Press Association
4. Forest striker in Leeds link
Nottingham Forest striker Brennan Johnson, who was on loan at Lincoln last season, is interesting Leeds United. (The Athletic) Photo: Press Association