It is the second time in his career that Sir Andy has won the award, with the British player earning the accolade after donating prize money won this season to help those in Ukraine.

Writing for the ATP Tour website about his decision to donate prize money Sir Andy said: "In February I was playing the tournament in Dubai and I remember watching the news and there were rumours about something happening between Russia and Ukraine.

"A few days later when Russia invaded Ukraine everyone was very worried about what it would mean.

"When all the images on the news showing what was happening to families began pouring in, it was devastating. Houses were bombed and families were displaced.

"Young children were affected by this, with many injured and in some cases dying. I wasn’t sure what I could do to help.

"Shortly after I decided that from Indian Wells onwards, I would donate my prize money for the rest of the season to United Nations International Children’s Emergency Fund (UNICEF’s) humanitarian response - the final total was just over $630,000 (£517,000/€594,000).

"It seemed like something that would give me some extra motivation this year. I thought I could also raise some awareness and hopefully get others involved in helping, too.

"There are 7.5 million children in Ukraine and after more than nine months of increased conflict, 5.2 million of them are in need of assistance.

"UNICEF is working around the clock to keep children safe by ensuring child health and protection services are sustained, critical supplies are delivered to families and that children have clean water and nutritious food.

"When you see images of children on the news who were impacted by things like this, that makes it even more difficult to stomach.

"I have four young children who are really fortunate that everything is fine with them. But being a parent, it affects you differently.

"You try to put yourself in their shoes. If something like that happened with your own family, how difficult would that be? It is hard to fathom.

"I’m in the fortunate position to try to make some sort of difference, so hopefully the money that’s been raised through UNICEF can help some of the children who have been affected."

Sir Andy previously won the award in 2014 and he joins Andre Agassi of the United States, Switzerland’s Roger Federer and Aisam-ul-Haq Qureshi of Pakistan.

Jon Sparkes OBE, the Chief Executive at the UK Committee for UNICEF, issued the following statement in praise of Murray’s efforts in Ukraine: "We are hugely grateful to UNICEF UK Ambassador, Andy Murray, for generously donating this season’s prize money to UNICEF UK.

"The incredible donation will support UNICEF’s work responding to the ongoing conflict in Ukraine, which is having a devastating impact on the country’s 7.5 million children.

"Over nine months of war has left millions of children in need of humanitarian assistance, with destroyed infrastructure and freezing weather leaving Ukraine’s children facing an uncertain future.

"UNICEF is working day and night in Ukraine and neighbouring countries to keep children safe by helping to make sure that child health and protection services are sustained, delivering critical supplies to families and ensuring children have clean water and nutritious food.

"Andy’s endless dedication to the role of UNICEF UK Ambassador has seen him support many life-changing fundraising initiatives and advocacy campaigns since he took on the role in 2014.

"I know I speak on behalf of everyone at UNICEF UK when I say a huge thank you."