Superstars, super coaches and selfie sticks

It's that time of year again.

One hundred and forty thousand punnets of strawberries ripened to perfection, 256 players dreaming of singles glory, 19 courts trimmed with precision - all for two weeks and one tournament.

Wimbledon is here.

And here's what you need to know as the world's best tennis players convene at the All England Club.

Novak Djokovic holds the winner's trophy on the centre court balcony after his men's singles final victory over Switzerland's Roger Federer in the men's singles final match, on day thirteen of the 2015 Wimbledon Championships. Photo: AFP

Can anyone stop Novak Djokovic?

The Serb has been peerless since lifting the men's title last year.

He has won the three other Grand Slam titles - US Open, the Australian Open and the French Open - and lost just six of 84 matches since he departed Centre Court last year.

The 29-year-old is only the third man in history to hold all four of the Grand Slams at the same time and is clear of world number two Andy Murray at the top of the rankings by a country mile.

Spanish great Rafael Nadal has withdrawn with a wrist injury while Roger Federer - still returning from a back injury - would have to turn around a record of six defeats in their past eight meetings to beat Djokovic.

Austrian Dominic Thiem - the leading light in the coming generation of players - was roundly thrashed by Djokovic in the French Open semi-finals.

What about Andy Murray?

The Scot famously beat Djokovic in straight sets in 2013 to end Great Britain's 77-year wait for a men's champion. That remains the pair's only meeting on grass.

And Ivan Lendl - who helped guide Murray to that victory - is back on his coaching team after two years apart.

Murray won his fifth Queen's Club title last week in the first tournament since his reunion with Lendl - surging back to beat big-serving Milos Raonic in the final.

Will Lendl's steely glare from the players' box inspire Murray to revive the ruthlessness of three years ago?

Britain's Andy Murray (L) serves during a practice match on the first day of the ATP Aegon Championships at the Queen's Club in west London on June 15, 2015. Photo: AFP

Is Serena a certainty for the women's title?

Not at all.

Williams is chasing Steffi Graf's record of 22 Grand Slam titles, but has suffered a series of shock defeats since chalking up her 21st at Wimbledon last year.

Roberta Vinci, Angelique Kerber and Garbine Muguruza have all beaten the previously all-conquering American at the business end of a Grand Slam over the past 12 months.

Muguruza, runner-up here last year, two-time champion Petra Kvitova and world number three Agnieszka Radwanska are the most likely winners if the top seed fails to deliver once again.

All over for Sharapova?

In recent years at Wimbledon, Maria Sharapova has opened a pop-up store on the local high street selling her sweets range, but it is unlikely she'll be doing so this year.

Earlier this month, the 29-year-old was banned from the sport for two years after testing positive for banned heart medication.

The Russian - who has been included in her country's team for the Rio Olympics despite the ruling - claims the suspension is "unfairly harsh" and is appealing against it.

The Brits are coming

A grand total of 15 of them will start the singles tournaments.

British number one Johanna Konta is seeded 16th - the first British woman to get a protected place in the draw since 1984 - and will fancy her chances of getting to the second week.

Heather Watson and Naomi Broady have also qualified by right, with former British number one Laura Robson getting a wildcard as she continues her long battle back from injury.

Seventeen-year-old Kate Swan from Bristol - a runner-up at the Australian Open girls' event in 2015 - and British number four Tara Moore have also been given places in the main draw.

On the men's side, Murray, Aljaz Bedene, Kyle Edmund and Dan Evans are joined by Liam Broady, Alex Ward, James Ward, Brydan Klein and Marcus Willis, the world number 775.

Familiar faces

Wherever you look in the draw, there are reminders of great days at previous tournaments.

Remember Lukas Rosol's epic five-set upset of Rafael Nadal under the lights in 2012? The Czech is back.

Tennis' answer to Lady Gaga, Bethanie Mattek-Sands? Certainly.

Martina Hingis (L) and Sania Mirza (R) pose with the winner's trophies during the presentation. Photo: AFP

Super coaches

If - as seeded - Djokovic and Murray meet in the men's final, there will be as many Grand Slam titles in the players' box as out on court.

Lendl and Boris Becker - who coaches Djokovic - are two of a slew of famous names from the past in prominent coaching roles.

Lendl has eight Grand Slam titles and Becker six, including three Wimbledon wins.

The original Wimbledon hell-raiser John McEnroe is in Milos Raonic's corner, Centre Court darling Goran Ivanisevic works with Marin Cilic, seven-time Grand Slam champion Justine Henin is guiding Elina Svitolina, American Michael Chang is part of Kei Nishikori's team and 1996 champion Richard Krajicek is passing on his know-how to Stan Wawrinka.

Dress-code clashes

It takes a lot to ruffle Roger Federer's feathers.

But Wimbledon's all-white dress code - which was tightened in 2014 to include the soles of players' shoes, stripes on their collars and the brims of their caps - does just that.

"They've gone too far now. The rules have become ridiculously strict," he said last year.

"We're talking white like it was in the 1950s."

Security and selfie sticks

If you want an extra wide backdrop for your "I was there" Wimbledon photo, you will have to ask a passer-by to do the honours.

Selfie sticks are one of the items banned from the grounds, along with over-sized hats.

The Metropolitan Police has "thoroughly reviewed" security at the tournament since last November's attacks on Paris, and has said armed police will be deployed "in a different way" to previous years.

Former Swedish professional tennis player Bjorn Borg (R) and his wife Patricia Ostfeldt (L) sit on Centre Court. Photo: AFP

Special guests

Expect cameos from the stars of stage, screen, society and sport in the midst of all the on-court drama.

Prince William and Kate Middleton - the Duke and Duchess of Cambridge - usually make an appearance in support of Andy Murray at some point in the fortnight.

Actors Hugh Grant, Benedict Cumberbatch, Helena Bonham-Carter, Jeremy Piven, Kristin Scott-Thomas, Sacha Baron Cohen and Bradley Cooper were all in the crowd last year.

And former England football captain David Beckham held on to a smart one-handed catch while watching the men's doubles final.

What's new this year?

There will be a wheelchair singles tournament for the first time at Wimbledon.

Great Britain has representation in both the men's and women's draws with Gordon Reid, Alfie Hewett, Jordanne Whiley, Lucy Shuker and Louise Hunt involved.

The competition starts on 7 July with the men's and women's finals on finals weekend.

Wimbledon - which first held a wheelchair doubles tournament in 2005 - is the last of the four Grand Slam events to introduce wheelchair singles.

The million-pound-a-week champions

Both the men's and the women's single champions will pocket a cool £2m in prize money for their fortnight's work.

No wonder Djokovic and Williams had a spring in their step at last year's Champions' Dinner.

Even the first-round losers will head home £30,000 richer.

I'm sold, how do I get a ticket?

The bad news is the majority of tickets have already been sold via a ballot system. You had to have your application in by 31 December.

The good news is - despite missing that deadline by six months or so - you can still get in.

Online ticket seller Ticketmaster puts "several hundred" tickets for the next day's play on sale over the first nine days. You'll need to have a fast click finger, though. These tickets sell out almost instantly. Or you can get a swanky lunch, some fizz and a substantially larger dent in your bank account by buying a hospitality package.

The alternative is... drumroll please... The Queue. For the big-name courts this will probably have to involve a night under canvas in nearby Wimbledon Park, a 06:00 BST wake-up call from one of the stewards and finally a little more queuing before you get in to the All England Club.

If you are happy to tour around the outside courts, an early start rather than an overnight stay in the queue should be sufficient.

Any chance of a rain-delay sing-a-long?

Sir Cliff Richard famously picked up the microphone and, with an impromptu chorus line that included tennis greats Pam Shriver and Martina Navratilova, entertained the Centre Court crowd during a rain delay in 1996.