Before Barcelona's Champions League match against Celtic, Lionel Messi, Luis Suarez, Neymar et al have been training this morning.

It's fair to say they don't look like they've been over-exerting themselves.

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Lunch has just been called on the first morning of the penultimate round of County Championship fixtures, and it's been a very good couple of hours for Division One leaders Middlesex.

Nick Gubbins and Sam Robson have put on an unbeaten 93 for the first wicket in the first session against Lancashire at Old Trafford, while Yorkshire, who sit just one point behind them, are 86-4 at home to Somerset.

Follow all the action live here.

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On the subject of Barcelona, forward Neymar is planning a career in music. Starting on Wednesday.

Yep, you heard that right, the Brazilian is going to release a song through Facebook, letting his fans know the exciting news, external just hours after Barca were beaten by Alaves on Saturday.

We'll all keep our eyes peeled for that one...

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The Champions League group stages get under way on Tuesday with Scottish champions Celtic currently flying to Barcelona for a rather tough opener.

Still, a 5-1 win over Rangers is probably the ideal preparation.

Barcelona left-back Jordi Alba has just been facing the media and says they will not be taking anything for granted..

"We have seen Celtic and they play very well. It will be difficult to create opportunities but that's what we are there for," he said.

"It's important to have a good start."

Simon Stone
BBC Sport

Big figures for Manchester United, slightly exceeding their own expectations of £510m revenues for the year to 30 June 2016.

As has been the case for a number of years now, commercial income is roaring ahead, with a 36.3% increase in that sector alone to £268.3m.

To put it into context, that figure would have put United 11th in the latest Deloitte Rich List, ahead of Tottenham, both Milan clubs, Roma and Borussia Dortmund.

The only slight downer is that United cannot claim to be the first football club to generate annual revenue in excess of £500m.

That claim belongs to Barcelona, who benefited from a stronger Euro against the pound post-Brexit.

Bath number eight Taulupe Faletau is a doubt for Wales' autumn Tests with a knee injury which could rule him out for up to eight weeks.

As expected, Manchester United have announced revenues of over half a billion pounds - the first British club to do so.

They earned £515.3m in the 2015-16 financial year.

The net debt is £260.9m while former manager Louis van Gaal and his coaching staff were paid £8.4m in compensation, United's accounts show.

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Marcus Rashford impressed once again at the weekend, influencing the Manchester derby with his pace and direct running, although he couldn't do enough to save his United side from falling to a 2-1 defeat by rivals City.

And United team-mate Zlatan Ibrahimovic thinks the 18-year-old is set for a rather special career.

"It's not like he needs to take over the world today, the club knows that, the coach knows that and the team knows that," Ibrahimovic told Sky Sports., external

"We know his quality and what he's able to do. What the world is seeing now, we already know because we see it every day.

"There is no need to rush to push him and put him in the heat zone and put a lot of pressure on him because that can have the opposite effect.

"Time by time, he will take over everything. It's about having patience."

You can catch up with all the stories and action from the Great North Run here.

And if you want to find out about how to get into running, read our special guide.

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Manchester City moved a step closer to their first Women's Super League title as a 1-0 win at Arsenal kept them seven points clear of second-placed Chelsea.

City's Scotland striker Jane Ross won the game, deflecting in England captain Steph Houghton's second-half free-kick.

Arsenal's Jordan Nobbs had been denied by a fingertip save from Karen Bardsley before half-time, but the hosts rarely went close to finding an equaliser.

Victory assures City of qualification for the Champions League for 2017-18.

City have played a game more than rivals Chelsea, but will win the title if they avoid defeat at home to the Blues on 25 September.

Celtic fans may enjoy watching highlights of Saturday's 5-1 victory over Rangers as the Old Firm fixture returned to the Scottish top flight after a four-season absence. 

Rangers fans, not so much.

Angel Cabrera (golf) – the two-time major winner from Argentina is 47 today.

Kevin Sinfield (rugby league) - the former Leeds Rhinos captain, who also played for England, Great Britain and Yorkshire Carnegie, celebrates his 36th birthday today. 

Darren Campbell (athletics) - a member of Britain's Olympic gold medal-winning 4x100m relay team in 2004, turns 43.  

Nathan Bracken (cricket) - former Australia international who took 174 one-day international wickets turns 39.

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Michel Platini has been given permission to address European football's governing body Uefa when it meets this week - despite the former president being banned from all football activity.  

Frenchman Platini, 61, was head of Uefa until his ban for breaching ethics rules over a £1.3m "disloyal payment".

Uefa is meeting to select the former France midfielder's successor.

It asked Fifa for permission for its ex-leader to attend the gathering.

Read our developing story here.

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You've worked hard this morning, I can tell, so treat yourself to a biscuit (we're on the gingerbread in the office today) and have a crack at our Question of Sport teaser.

Stan Wawrinka and which six men have won their first and only US Open singles title since 2000?

Get your answers in to #QSTeaser on Twitter. Good luck!

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Life as a seam-bowling cricketer is all fun and games when you're a young dog, leading the pack and hunting wickets.

But when the eyes start to dim and the limbs start to weaken, it can be time to call it a day and retire to the day.

Don't worry I haven't gone mad. I'm just paraphrasing retiring Hampshire man James Tomlinson.

"Although I was once both the young dog at the front and the healthy dog in the middle, I feel now is the right time to head back to the den," he said, in what former England spinner Graeme Swann has described as "the greatest retirement statement of all time".

"I now have the opportunity to do just that and look after all the young dogs coming through - a job I already love and cherish."

Tomlinson, who likened himself to an "old dog with half a leg", took 382 first-class wickets in 129 matches.

"I would most like to thank the opposition batters who somehow for over a decade missed the straight ones and nicked the half volleys... to you all I will be forever grateful," he ends.  

5 Things About Football: Liverpool buying Andy Carroll for £35m in 2011.

Steve: Deciding to play a darts deciding leg in the St Clare's social. Of course it was the day my opponent hit his one and only nine-darter.

Matt P: Jun 14 1970 West Germany v England World Cup quarter-final, 70 mins - substitute number 19 (Bell), replacing no. 9 (Charlton).

For our younger readers, reigning champions England were leading 2-1 when Sir Alf Ramsey took off Sir Bobby Charlton in that Mexico World Cup quarter-final. Result: West Germany 3-2 England.

What are your worst sporting decisions? Tweet #bbcsportsday, text 81111 or head to the BBC Sport Facebook page. , external

I'm not going to lie, I don't really get American football. Too much fiddling about between plays.

This, however, nearly has me converted. Tennessee Titans' DeMarco Murray literally jumping over a Minnesota Vikings defenders' head, before landing as gracefully as a swan. 

Sublime.

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We've mentioned David Weir and Richard Chiassaro, but they are just two of GB's medal contenders on day five in Rio. So here's a little look at the best of the afternoon session...

Will Bayley will be hoping to upset the home favourite in the men's singles class 7 table tennis gold-medal match, where he faces Brazil's Israel Pereira Stroh at 14:45 BST.

Jordan Howe races in the men's 200m T35 final at 14:50 BST, with Welshman Aled Davies then going for gold in the men's F42 shot put from 14:59 BST - Davies was a gold medallist in the F42 discus four years ago.

There's a medal hope in women's table tennis, too. Sue Gilroy faces Serbia's Nada Matic in the singles class 4 bronze-medal match from 15:45 BST.

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World number one Novak Djokovic says tennis now has a 'big five' following Stan Wawrinka's US Open triumph.

Wawrinka beat Djokovic in four sets on Sunday to win his third Grand Slam.

"He plays best in the big matches and definitely deserves to be mentioned in the mix of top players," said Djokovic.

But world number three Wawrinka, who said he was crying with nerves before the final, insisted he was "really far" from the 'big four' of Djokovic, Andy Murray, Roger Federer and Rafael Nadal.

That illustrious quartet have won 42 of the past 47 Grand Slams, though Wawrinka now has the same number of major titles as Olympic champion Murray.

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It proved a super Sunday for ParalympicsGB out in Rio, winning eight golds to take their medal tally to 56 in four days.

And there will be plenty of opportunities to add that haul today, too. First up are two British medal contenders in the same race - David Weir and Richard Chiassaro go head-to-head in the men's 400m T54 final at 14:16 BST.

Weir, who also became a father yesterday, is chasing an incredible seventh Paralympics gold medal, while Chiassaro hopes to make up for the disappointment of missing out on London 2012 by earning a podium spot in Brazil.

For a full guide to day five, head here.