It would 'mean a lot' to become world number one again, Federer tells BBC
Olivia Breen wins T38 long jump gold at World Para-athletics Championships
Arsenal fear missing out on key target Lemar
Former England keeper Robinson retires
Cricket: England thrashed by 340 runs as South Africa win second Test
Liverpool to host 2017 BBC Sports Personality of the Year awards
Get involved: Your sporting records - #bbcsportsday
That's all from us folks. Thanks very much for your company.
The sporting action continues on the BBC Sport website tonight with live text from the World Para-athletics Championships and, before that, you can watch Tom Daley and Daniel Goodfellow at the World Aquatics Championships in Budapest from 17:30 BST.
Until next time...
Football
Everton have signed defender Cuco Martina on a Bosman after his contract expired at Southampton.
The right-back, 27, worked with Everton boss Ronald Koeman for one season when his countryman was in charge at St Mary's.
Martina, who is captain of the Caribbean nation of Curacao, has signed a three-year contract.
Image source, Getty ImagesNewcastle United's French forward Yoan Gouffran has joined Goztepe, external in Turkey. The 31-year-old made more than 140 appearances for the Magpies after joining from Bordeaux in 2013, scoring 19 goals.
Image source, Getty ImagesFootball
Championship side Bolton Wanderers have signed Newcastle's 20-year-old forward Adam Armstrong on loan until January.
Armstrong spent almost all of last season on loan at Barnsley, scoring six times in 35 appearances for the club.
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Chelsea midfielder Mukhtar Ali, 19, has completed a permanent transfer to Vitesse Arnhem after impressing on loan at the Dutch club during the second half of last season.
"We thank Mukhtar for his service and wish him well for the future," says a Chelsea statement., external
Image source, Getty ImagesNewcastle United have agreed a £12.5m fee with Norwich City for 22-year-old forward Jacob Murphy, according to the Daily Telegraph.
Image source, Getty ImagesAthletics
Have a watch as Britain's Chijindu Ujah wins the men's 100m in 9.98 seconds at the Diamond League meeting in Rabat, Morocco.
Diving World Championships
Image source, EPABritain's Grace Reid and Katherine Torrance have finished fifth in the 3m synchro springboard final at the Diving World Championships in Budapest.
They finished with a total score of 294.60 after five dives while China's Yani Chang and Tingmao Shi took gold with 333.30.
Canada's Jennifer Abel and Melissa Citrini Beaulieu (323.43) claimed the silver while Russia's Nadezhda Bazhina and Kristina Ilinykh (312.60) got the bronze.
Tom Daley and Daniel Goodfellow will compete in the men's 10m synchro platform final at 17:30 BST, which you'll be able to watch live on this website.
Michu, the Spanish midfielder who helped Swansea win the League Cup in 2013, has been forced to retire.
The 31-year-old was the Swans' top scorer in 2012-13 with 22 goals in a spectacular first season after a £2m move from Rayo Vallecano.
Within two years of helping Swansea finish ninth in the Premier League a recurring ankle injury saw him playing fourth-flight football in Spain.
Michu spent the 2016-17 season with Oviedo and plans to move into coaching.
Image source, Getty ImagesCeltic striker Leigh Griffiths faces further disciplinary action on top of his bizarre Belfast booking after being accused of "provoking" Linfield supporters during a Champions League qualifying match.
Uefa has opened a case against Griffiths over his actions at the end of Celtic's 2-0 second qualifying round first-leg win at Windsor Park last Friday.
The Scotland international, who was earlier pelted with missiles including a glass bottle, tied a Celtic scarf to a goalpost. The European governing body has also instigated disciplinary action against Linfield over their supporters' behaviour, and Celtic for their yellow card count.
Image source, Getty Images#bbcsportsday
HK Joyce: Carrying an egg on a spoon from one side of the field to another in primary school.
Ruth Sharville: Coming second in the long jump at junior school - a total surprise to me!
Dan James: Played U16 fast pitch softball for Guernsey in a tournament in the UK in mid-80s. WON 37-0 in the final, still a record.
Tweet #bbcsportsday, text 81111 or head to the BBC Sport Facebook page. , external
Football
Image source, Getty ImagesMiddlesbrough are close to breaking their transfer record by signing Nottingham Forest strikerBritt Assombalonga for £14m.
Assombalonga, 24, is currently in talks with Boro at their Rockliffe Park training ground after the two clubs agreed the broad outlines of the transfer fee.
Burnley made a bid for the Zaire-born forward earlier this summer but Middlesbrough have outbid their rivals and look set to sign a man who scored 14 goals in 33 games last season.
If the deal is finalised then the signing will eclipse the £12.7 million that Middlesbrough paid for Brazilian striker Afonso Alves in 2008.
Carrying on the theme of World Emoji Day (which apparently is a thing)...
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Hands up who knew it was World Emoji Day?
To celebrate, Italian side Roma have come up with this of Francesco Totti.
Ipswich Town will not be offering former Newcastle United defender Steven Taylor, 31, a new contract, manager Mick McCarthy says.
Taylor featured three times for Ipswich after joining them in January.
His time at Portman Road was hampered by a hamstring injury, but he was invited back for pre-season.
Image source, Rex FeaturesWorld Para-athletics Championships
It's BBC v Channel 4 in the media race at the World Para-athletics Championships. Have a watch of that below...
England v South Africa, second Test
Former England opener and TMS commentator Geoff Boycott is dissecting England's 340-run defeat against South Africa at Trent Bridge.
Guaranteed to be lively. Have a watch of his latest Face Boycs Live below... (app users may need to select the link)
Latest gossip
Image source, Getty ImagesCrystal Palace are on the verge of signing Ajax defender Jairo Riedewald in a deal worth around £8m, reports the Evening Standard. , external
New Palace boss Frank de Boer previously managed the 20-year-old at Ajax.
#bbcsportsday
Here's a good one.. app users may need to select the link to view the tweet below...
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Simon Stone
BBC Sport
Manchester City flew to United States today for the start of their pre-season tour. A few players, including Yaya Toure and Leroy Sane, weren't there but the club is adamant there is no issue and they will be going.
Image source, Getty Images