Having already brought in Chelsea's Kenneth Omeruo on loan Middlesbrough manager Aitor Karanka is now trying to land Blues midfielder George Saville.
Ben Davies and Calum Chambers have both made the move to North London by joining Tottenham Hotspur and Arsenal respectively, but who will impress most?
Former Liverpool defender Jamie Carragher has revealed that the club never tried to keep him at Anfield in another role following his retirement at the end of the 2012-13 season.
Simon Mignolet has backed international teammate Divock Origi to become a Premier League star, following the Belgian striker's £10m move from Lille.
Jose Mourinho has been praising Chelsea midfielder Mario Pasalic.
Arsenal player Alex Oxlade-Chamberlain has been joking about his most recent spell training with the club.
Reflecting on his time at Tottenham Hotspur, new Watford signing Heurelho Gomes had some harsh words for Spurs chairman Daniel Levy.
Liverpool left-back Jose Enrique believes he can reclaim his spot in the starting lineup this season, after injuries disrupted his 2013-14 campaign.
Nottingham Forest goalkeeper Karl Darlow has ignored interest from both Liverpool and Tottenham by committing his future to Stuart Pearce's side.
Manchester United have confirmed their starting XI for the pre-season International Champions Cup game.