Conor McGregor buys his mum a BMW 4 series convertible worth £40,000 for her birthday

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UFC superstar Conor McGregor has bought his mum a BMW 4 series convertible worth £40,000 for her birthday.

The Irishman posted several pictures on his Instagram story for his mum's special day.

Alongside the caption: 'I know we've been snowed in for the last week...' was a picture of McGregor in the driving seat of the car.

Irishman Conor McGregor has bought his mum a BMW 4 series convertible for her birthday

McGregor posted several pictures on his Instagram story for his mum's special day

The third post was of his son Conor Jr with his mum Margaret in the new car worth £40,000

That post was followed by a photo of him getting out of the car with the caption: 'But here's a convertible Ma.'

He then posted a picture of his mum Margaret in the car with his son Conor Jr with the caption: 'From Junior.'

The birthday posts on his Instagram story ended with a photo of him holding his son alongside the caption: 'Happy Birthday Ma' and a group picture at a restaurant with the caption: 'Family.'

On Tuesday McGregor claimed to have surpassed Cristiano Ronaldo in the list of highest-paid athletes in the world – as he predicted back in 2016.

As well as the Irishman's money-spinning boxing bout with Floyd Mayweather last summer — from which he is believed to have pocketed about £100million — he has secured lucrative endorsement deals with Burger King and Beats by Dre.

In 2016-17, McGregor was ranked 24th in Forbes' list of highest-paid sports stars but is expected to rocket up that list for the 2017-18 instalment.

He then posted a picture of himself holding his son with the caption: 'Happy Birthday Ma'

Last year's rankings, released two months before the Mayweather-McGregor showdown, disclosed that the 29-year-old earned £19.5m from fighting and a further £5m in endorsements.

Ronaldo, on the other hand, earned £42m from football and bonuses as well as a staggering £25m from endorsements which saw him top the list. 

In an Instagram post McGregor wrote: 'Making deals and TAKING deals! Kings recognise Kings!

His series of posts on his Instagram story concluded with a group family photo at a restaurant

'I am also really interested to see this years Forbes highest paid athletes list. I have now surpassed Cristiano Ronaldo as I told him I would in 2016.

'Floyd as a retired fighter that makes ZERO substantial revenue outside of them ropes is not on the list, and in the long game, is already dead.

'Mixed Martial Arts is a glorious game, Floyd. You are going to love it hahaha.'