15/07/2017 Newsround

Hello, I'm Martin, and this is Newsround at Saturday lunchtime.

And we're all getting very excited about the tennis on the final

weekend of Wimbledon!

Now in action on Court number three are Britain's Alfie Hewett

and Gordon Reid in the final of the men's wheelchair doubles.

They've made a strong start and are leading in the first set.

Staying with tennis

and the women's singles final is happening today

on Centre Court later.

Five-time winner Venus Williams will take on Spain's Garbine Muguruza.

And it's the men's singles final tomorrow.

Marin Cilic beat Sam Querry after an exciting match yesterday

and he'll face Roger Federer, who beat Tomas Berdych.

Federer is aiming for a record-breaking

eighth Wimbledon title.

I feel very privileged to be in another final.

I know how much it means to so many players to be able to go out

on Centre Court at Wimbledon at any given time in their career and I've

had the pleasure to play on Centre Court so many times

and this time, in another finals, it's so good.

I can't almost believe it's true again.

And you might not know who to cheer on in the mixed doubles tomorrow

because there's two British players in the mix!

Heather Watson and her partner Henri Kontinen are the defending

champions after winning last year, and they'll face fellow

Brit Jamie Murray and his partner Martina Hingis, in the final.

Next, from aces to races because Hannah Cockroft took T34

100m gold in world-record time as Britain won three medals

on the opening night of the World Para-athletics Championships

at London Stadium.

17.18 seconds was all it took for Hannah to cross the finishing

line, and the Paralympic triple medalist is loving the atmosphere.

Immense!

Amazing!

I think going around the warm-up laps, I was getting a bit emotional.

The noise is so loud.

We haven't had that since London 2012.

And just to be able to go in, put a good performance in,

it just means so much.

And hopefully, it's a sign of a good Championships to come.

Tackling a blaze isn't just a job for firefighters, fire dogs play

an important role, too!

This is Scrappy.

He helps the fire teams in the North East of England.

But he's now putting his paws up and retiring.

So, who will get his job, and what does it take to be

a brilliant fire dog?

Meet Scrappy, County Durham and Darlington Fire Service's

very special dog.

He puts his special fire-protection boots on and then he's off,

helping the firefighters.

In fact, he's so good at his job, he's been given a special award

by a nearby university!

He can detect evidence up to one metre deep and 21

days after the fire, which is really, really good!

He's brilliant as his job, but it's time for Scrappy to retire

and the team are looking for his replacement.

So, what makes a good firedog?

We like having cockers.

They're easy to train, lightweight, good with kids,

can go up ladders with me and can go up aerial mounts if we need

to get into high flats.

Well, the hunt is on, but it's not going to be easy

finding a dog that can fill Scrappy's very special fire boots!

It's monkey versus human now.

The cheeky wild monkeys on Gibraltar are having a bit of a row

with the people living there, Ayshah has more.

Look at these lot - hanging about, being cute, monkeying around.

Wait...

Did he just steal food?

The Barbary macaques are the only wild monkey left in Europe.

Tourists love them but the people who live here...

Not so much.

They know how to open your car door.

They know, when they wander down in town and you have left

the kitchen window open, they know what a refrigerator is.

They know how to pull the handle open and help themselves.

Refrigerators, eh?

I would be devo if they stole my chocolate.

These monkeys might be troublesome but they are also rare.

There are only 225 of them in Europe and...

They are the last free-ranging primates in the whole of Europe.

They are on the endangered species list and if we're not careful,

they will disappear off the face of the Earth.

So, to keep the peace, a charity has set up

special feeding stations, away from homes, where the monkeys

can get their grub.

Let's hope they can all live together in perfect harmony.

And take a look at this!

There's more to this field than meets the eye.

Ricky's on the case.

Can you solve the mystery of the maze made from, well, maize?

It is a curious case, but this field in Leicester has

a collection of mysterious pathways the size of four and a half football

pitches, and every year it has a new design in the shape

of something special.

It might look a bit CORN-fusing up close,

but like every good detective, you need to look at the big picture.

Follow the twists and turns of the case over the three miles

of pathways, and see if you can spot a pattern emerging.

Elementary!

It's Sherlock Holmes.

Over the summer, the plants will grow even taller,

so you can easily lose your way.

People will be able to take on the case and solve the mystery

themselves when it opens to visitors in a few weeks' time.

Amazing!

That's all from me, Newsround's back right here in about half an hour.

Don't forget to check out the website for all the rest