David Beckham shows off his newly-dyed buzz cut in Hong Kong

David Beckham sported a darker hairstyle as he took to the stage in Hong Kong on Monday. 

The former footballer, 43, who sported a thinner hairline while holidaying in Miami earlier this month, appeared to have dyed his hair ahead of his speech as the global brand ambassador for insurance company AIA. 

David, who has become renowned for his daring hairstyles over the years, looked dapper as he complemented his buzz cut with a black suit and polka dot tie. 

Newly-dyed locks? David Beckham sported a darker hairstyle as he took to the stage in Hong Kong on Monday

The father-of-four has set tongues wagging as to whether he has undergone a secret ‘hair transplant’ after photos emerged of him relaxing by a pool in Miami sporting a thinner hairline.

While David displayed noticeably sparser locks with his close-cropped cut in the US, the football ace’s hair appeared to have been dyed a darker shade of brown ahead of his trip to Hong Kong.

The sportsman, who has been littering Instagram with snaps during his time in China, was dressed the part as he took to the stage, covering up his numerous inkings in a smart black suit and fitted white shirt. 

Spruce up? The former footballer, 43, who sported a thinner hairline while holidaying in Miami earlier this month (right) , appeared to have dyed his hair ahead of his speech

Spruce up? The former footballer, 43, who sported a thinner hairline while holidaying in Miami earlier this month (right) , appeared to have dyed his hair ahead of his speech

Spruce up? The former footballer, 43, who sported a thinner hairline while holidaying in Miami earlier this month (right) , appeared to have dyed his hair ahead of his speech 

Handsome: While David displayed noticeably sparser locks with his close-cropped cut in Miami, the football ace's hair appeared to have been dyed a darker shade of brown

Handsome: While David displayed noticeably sparser locks with his close-cropped cut in Miami, the football ace’s hair appeared to have been dyed a darker shade of brown

Rumours: The father-of-four has set tongues wagging as to whether he has undergone a secret 'hair transplant' after photos emerged earlier this month of him sporting a thinner hairline

Rumours: The father-of-four has set tongues wagging as to whether he has undergone a secret ‘hair transplant’ after photos emerged earlier this month of him sporting a thinner hairline

Visiting the Great Wall of China near Beijingh, he penned: ‘Today I was able to visit The Great Wall of China for the first time. I feel so lucky that my work allows me to travel and to see beautiful places like this… AMAZING.’

It comes amid reports that David has ‘become one of a growing number of middle-aged men to undergo a hair transplant’.

Over the past few months, the retired footballer has rocked several different hairstyles and last year the father-of-four sported much longer locks and was often spotted wearing different beanie hats.

While the sporting legend went on to cut his locks into a much shorter hairdo, with the sides shaved off and the top strands styled into a quiff.

Sight-seeing: The sportsman has been littering Instagram with snaps during his time in China and beamed as he visited the Great Wall Of China 

Sight-seeing: The sportsman has been littering Instagram with snaps during his time in China and beamed as he visited the Great Wall Of China 

Dapper: The sportsman was dressed the part as he took to the stage, covering up his numerous inkings in a smart black suit and silk polka dot tie

Dapper: The sportsman was dressed the part as he took to the stage, covering up his numerous inkings in a smart black suit and silk polka dot tie

Yet more recently, David has been sporting a close-cropped look with a suspiciously straighter hairline, sparking the question, has he had a hair transplant?

MailOnline has contacted the sporting legend’s representative for comment.

Over the years, David has sported several iconic hairstyles, including cornrows to even a mohawk.

Strike a pose! Staying true to his dapper fashion sense, the father-of-four put on a suave display as he donned a denim blue shirt and dark-wash bottoms

Strike a pose! Staying true to his dapper fashion sense, the father-of-four put on a suave display as he donned a denim blue shirt and dark-wash bottoms

Some of his other famous looks include curtains, a buzz cut and luscious blond long locks.

If the reports are true, hair transplants are becoming more popular with several male celebrities bravely sharing their hair transformations.

Dr Asim Shahmalak, from Crown Clinic in Manchester, said: ‘If you look at the pictures of David Beckham today he is showing fairly advanced signs of male pattern baldness in his mid scalp and towards the crown and the back of his head.

‘However, if you look at the front of his hairline, there is greater density there.

'So lucky': The former Manchester United ace who is a global ambassador for Chinese football, treated his fans to a glimpse of the breathtakingly beautiful scenery

‘So lucky’: The former Manchester United ace who is a global ambassador for Chinese football, treated his fans to a glimpse of the breathtakingly beautiful scenery

Hair legend: Over the years, David has sported several iconic hairstyles, including cornrows, a  buzz cut and even a mohawk

Hair legend: Over the years, David has sported several iconic hairstyles, including cornrows, a  buzz cut and even a mohawk

Hair legend: Over the years, David has sported several iconic hairstyles, including cornrows, a buzz cut and even a mohawk

‘This could be a trick of the light or it could be the signs that David Beckham has had a hair transplant because the darker appearance of his hair at the front is where the transplanted hair would have been planted.’

David’s close friend, Gordon Ramsay, was famously spotted leaving a hair transplant clinic in Los Angeles in 2011, with a black surgical-style cap on his head.

But the TV chef claimed otherwise, blaming it on a run-in with illegal fishermen and an allergic reaction to horses. According to Metro, the chef said he was covered in petrol while filming illegal shark fin fishermen for a Channel 4 show. 

Previous men who have had such procedures include James Nesbitt, who was treated in Ireland, and Wayne Rooney, who have both been open over their hair transplants.

Just months ago: He has reportedly 'become one of a growing number of middle-aged men to undergo a hair transplant'

Just months ago: He has reportedly ‘become one of a growing number of middle-aged men to undergo a hair transplant’

Read more at DailyMail.co.uk