West Ham will play either Shakhtyor Soligorsk of Belarus or Slovenian side Domzale in Europa League qualifiers.
France playmaker Dimitri Payet has insisted he is "100 per cent staying at West Ham".Read the full story ›
West Ham have signed England Under-20 international Ashley Fletcher from Premier League rivals Manchester United.
The 20-year-old, who has signed a four-year contract with the Hammers, spent the second half of last season on loan at Barnsley, helping the Tykes win the Johnstone's Paint Trophy and promotion from Sky Bet League One via the play-offs.
The striker was out of contract at Old Trafford and, according to West Ham, the terms of the transfer will now be finalised.
Fletcher told West Ham's website: "I am very excited to be here. West Ham are a massive club and I am just happy that I can come and further my development here.
"I think it is a club with a lot of ambition. They have a lot of good players and it was a special final season (at Upton Park). They managed to finish the campaign very well.
"West Ham are a club built on traditions of giving youngsters a run and hopefully I can get my chance as well."
West Ham have announced the season-long loan signing of Besiktas winger Gokhan Tore.
The 24-year-old, who passed through Chelsea's youth academy earlier in his career, joins the Hammers for the forthcoming campaign for a loan fee of £2.5million.
Tore played under West Ham boss Slaven Bilic at Besiktas and there is an option in place for the Premier League club to buy the Turkey international for a further £10million.
The former Hamburg man won Turkey's Super Lig last season and hailed father-figure Bilic as one of the reasons in him deciding to return to England.
Crystal Palace have confirmed the signing of James Tomkins from West Ham for a fee of £10million.
The central defender, 27, has signed a five-year contract to leave the club he turned professional with.
He becomes manager Alan Pardew's third summer recruit after the arrival of club-record signing Andros Townsend, and France international goalkeeper Steve Mandanda.
"I am really excited to be joining Crystal Palace, a massive club and a manager in Alan Pardew that I know well and will always be thankful for how he helped me develop in my younger days at Upton Park," said Tomkins, who will join Palace's tour of the US and Canada which begins on Sunday.
Chairman Steve Parish added: "I'm really pleased James has agreed to join us, he's someone Alan has always wanted to sign from his own days at West Ham.
"I'm sure he is destined to become a huge part of our team as we look to build on the progress the club has made over the last six years.
"It's been a really positive transfer window so far, everyone has worked really hard to make these deals happen and I think we are much stronger because of them."
West Ham United full-back Aaron Cresswell has signed a one-year contract extension.
Cresswell, 26, joined the Hammers from Ipswich two years ago and has firmly established himself in the side during that time.
His extension will keep him at the club until 2021 and follows on from Michail Antonio penning a fresh deal on Monday as manager Slaven Bilic looks to tie down all of his key personnel to longer contracts.
Manchester United's dramatic FA Cup win over Crystal Palace means that West Ham have qualified for next season's Europa League – the Hammers will play their home matches at the Olympic Stadium for the first time.
Lyon have turned down a bid worth £31million from West Ham for Alexandre Lacazette, club owner Jean-Michel Aulas has revealed.
Aulas told French newspaper Le Progres the offer from the Hammers was the biggest so far tabled for the striker.
The 24-year-old France international has been a prolific scorer for Lyon in the French league for three seasons.
Aulas was asked if Lyon had received offers for Lacazette, and said: "Yes. Many, the most important being that of West Ham for 40 million euros (£31million) which we've refused. I want to keep him but I'm not certain because it's he who will decide in the end."
Aulas detailed Lyon's position, telling the newspaper: "To have a sale, you need all three parties to be in agreement. We hope to keep him."
Eddie Howe is determined to keep Callum Wilson and Matt Ritchie at Bournemouth after rejecting West Ham's £20m bidRead the full story ›
West Ham United co-chairman David Sullivan has offered an apology to Manchester United over his comments made about their team bus arriving late.
Sullivan was critical of United for forcing the kick-off to be delayed after getting to Upton Park late after their bus was attacked on the streets of east London.
Sadly, the actions of very small minority of people outside the ground prior to kick-off risks overshadowing those celebrations. I want to be clear - their behaviour was completely unacceptable and does not represent our Club or our values.
When I was asked about the incident prior to yesterday's game, I was unaware of the damage that had occurred to the Manchester United team bus. I want to apologise to Manchester United for that damage and assure them that we will be doing all we can to track down those responsible and ban them for life.
I truly hope that in due course we will look back on what happened in the stadium rather than what happened outside and remember our farewell to the Boleyn for all the right reasons.