It’s that time of the year again – the transfer window is now open until September 1 and it’s sure to be a busy period with clubs looking to make big signings ahead of next season. Here are today’s latest developments from Simon Jones and the Daily Mail Sport team…Villa plough on with Jackson moveAston Villa are continuing to discuss a proposed deal for Nicolas Jackson at Chelsea.Daily Mail Sport reported on Saturday that Jackson has come up in conversation during negotiations over Morgan Rogers’ £117million sale.A proposed transfer for Rogers, who started his Chelsea medical today, and Jackson was discussed a year ago and the Senegal international is well known to Villa boss Unai Emery.For more on this story click HERE Nicolas Jackson joined Chelsea in 2023 but spent last season on loan at Bayern MunichComo show hand for ChalobahComo are willing to offer £35million for Trevoh Chalobah as talks continue over the Chelsea centre back’s future.Chalobah has been on World Cup duty with England and made a fleeting appearance against France on Saturday.Como had been rebuffed in their opening two proposals for the 27-year-old and are working to meet Chelsea’s valuation with a structured offer.Inter Milan have also discussed Chalobah as they want two centre backs but Como are hopeful they can conclude a deal for Cesc Fabregas. Serie A side Como are interested in signing Trevoh Chalobah from ChelseaNew arrival at LiverpoolAlejandro Rosalen has been appointed Liverpool’s new first-team goalkeeping coach. The 49-year-old Spaniard joins Andoni Iraola’s backroom staff, replacing Xavi Valero.Rosalen was at Serie A side Napoli and previously spent eight years with Fiorentina.Gomes goes to VillaAston Villa have confirmed the signing of Joao Gomes from Wolves. The deal is worth £38m comprised of an initial fee of £34m plus £4m in add-ons.United land Thompson from Spurs Manchester United have signed teenage winger Tynan Thompson from Tottenham, subject to the registration, in a deal believed to be worth up to £8million.It’s understood that United will pay £4m plus up to another £4m in add-ons to Spurs who will have a 15 per cent cut of any future sale. Manchester United have signed Tynan Thompson from TottenhamThompson, who was on the bench for Tottenham several times last season, scored 13 goals and contributed six assists across Under-18s and Under-21s games, including seven goals in as many UEFA Youth League fixtures.Thompson was involved in three senior matchday squads for Spurs last season and was on the bench against PSG and Borussia Dortmund in the Champions League. United confirmed the deal in a statement, saying: ‘Everyone at United would like to welcome Tynan to the club and wish him the very best of luck for the future.’CHRIS WHEELER Rogers due for Chelsea medicalAston Villa midfielder Morgan Rogers is due for his medical at Chelsea today.Daily Mail Sport reported yesterday that Rogers’s former club Middlesbrough will pocket around £20.2million from Morgan Rogers’ £117m transfer to Chelsea, which would represent a record sell-on fee in the Premier League. Morgan Rogers is due to undergo his medical ahead of a move to ChelseaThe ex-Boro midfielder is set for a move to Stamford Bridge after Chelsea struck a verbal agreement with Aston Villa, after Arsenal had failed to back up their interest with a suitable bid.When Boro agreed to sell him to Aston Villa, in February 2024, for £16m, they inserted a 20 per cent sell-on clause on any profit generated from a future transfer in the England international’s contract.Diop discussing Portman Road switch Fulham defender Issa Diop is in talks over an £8.5million move to Ipswich.The 29-year-old played for Morocco at the World Cup and is discussing a four-year contract with Gary O’Neil’s side. Ipswich are keen on a move for experienced Fulham defender Issa DiopIn case you missed them…SUNDAY: Roma ponder new bid for £50m-rated Crysensio Summerville SATURDAY: Revealed: The figure Middlesbrough are set to pocket from Morgan Rogers’ move to ChelseaFRIDAY: Aston Villa sign Swiss World Cup star Johan ManzambiTHURSDAY: Arsenal agree £34m deal to sign Greek attacker Christos TzolisWEDNESDAY: Sunderland sign Belgium’s Thomas Meunier