Transfer news live: Chelsea 'seriously interested' in Sergio Aguero as Liverpool are told Naby Keita is not for sale

Follow live updates on the latest transfer news, gossip, rumours and done deals

Premier League transfer round-up: Chelsea sign Bakayoko

The transfer window is open so, naturally, every man and his dog has been linked to Manchester United while champions Chelsea have had a frustrating start to the summer.

The likes of Kylian Mbappé, Alvaro Morata, Andrea Belotti, and Alexis Sanchez have all been linked with moves in what promises to be another summer of bumper signings.

Sanchez has made his first public push to get out of the club by admitting he wants Champions League football - but where will he end up next season?

Rather impressively, a number of clubs have already set about their business early. Manchester City were the summer’s early pace setters, having already signed both Bernardo Silva and Ederson, but rivals United have caught them up landing the summer's biggest deal so far, Romelu Lukaku from Everton.

The Toffees meanwhile Everton have signed six new faces including United's Wayne Rooney.

Chelsea finally got their hands on Antonio Rudiger while Alexandre Lacazette has joined Arsenal. Liverpool's pursuit of Naby Keita is beginning to annoy Leipzig with lots of talk but little action.

Follow all the latest updates below...

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[17 July 2017 12:10 · Jack Austin]

Zouma to Stoke?

Look who's been pictured in full Stoke training kit... it'll be a loan deal at the Bet365 Stadium for the Chelsea defender

[17 July 2017 12:26 · Ed Malyon]

RB Leipzig have rejected a €68m (£57m) offer from Liverpool for midfielder Naby Keita, and have told the Merseyside club that he is not for sale at any price.

Leipzig coach Ralph Hasenhuttl believes that the Guinean "feels comfortable" at the German club, but Jurgen Klopp's side are expected to return with another bid for the midfielder, whose contract at Leipzig runs until 2020.

[17 July 2017 12:32 · Ed Malyon]

Borussia Dortmund midfielder Mikel Merino could be set for a move back to Spain, according to AS, with Athletic Bilbao preparing a €10m offer for the player.

The 21-year-old, who was part of Spain's squad for the U21 Euros this summer, joined the German club from Osasuna last summer, but played just seven games for the side managed at the time by Thomas Tuchel.

[17 July 2017 13:40 · Ed Malyon]

Chelsea have a "strong and serious interest" in signing Manchester City striker Sergio Aguero, according to Sky Sports.

However, the Manchester club are understood to have no interest in selling their star striker, who has contract at the Etihad until 2020.  

[17 July 2017 15:03 · Ed Malyon]

Leicester City are attempting to tempt Gylfi Sigurdsson to the King Power Stadium over a move to Everton by offering the Swansea midfielder higher wages, according to The Daily Mail.

The report states that the 2016 Premier League champions are prepared to offer the Iceland midfielder wages of £125,000 a week, but are still considered outsiders for the player interesting favourites Everton and Tottenham. 

[17 July 2017 16:35 · Ed Malyon]

Newcastle United have agreed a £12.5m fee with Norwich City for Jacob Murphy, according to ​The Daily Telegraph.

The 22-year-old has been of interest to Rafael Benitez all summer, and having failed with a bid earlier in the window, it appears Benitez is edging towards signing a major target after a frustrating window up until now.

[17 July 2017 16:45 · Ed Malyon]

Chelsea have let another youngster leave the club today, but this deal involves a permanent transfer.

Mukhtar Ali, 19, has joined Vitesse Arnhem, where he spent the second half of last season on loan. 

[17 July 2017 16:57 · Ed Malyon]

Everton have announced the signing of right-back Cuco Martina on a free transfer.

The 27-year-old was released by Southampton at the end of last season but has now agreed a three-year deal on Merseryside. 

[17 July 2017 17:03 · Ed Malyon]

Newcastle's Adam Armstrong has joined Championship side Bolton Wanderers on loan until January.

The 20-year-old forward spent the whole of last season on loan at Barnsley.