A businessman who has played key roles for both Hearts and the Scottish Rugby Union has joined the campaign to keep Scotland in the UK.

Phil Anderton has just been appointed to the board of the cross-party Better Together organisation.

Campaign chair Alistair Darling described the 47-year-old as an "individual of the highest calibre".

During his career, Mr Anderton has been chief executive officer of both Heart of Midlothian FC and the Scottish Rugby Union. He was also chairman of the Barclays ATP World Tour Finals, a role in which he was responsible for the staging of the largest indoor tennis tournament in the world.

The Edinburgh-born businessman, who has a degree in management and international relations from St Andrews University, has also worked in brand management for both Procter and Gamble and Coca-Cola.

Mr Darling said: "I am delighted that Phil has accepted our invitation to join the board of Better Together. He is an individual of the highest calibre who has operated at the very top of his field for a number of years.

"Phil may be the first appointment to our board from beyond the world of politics, but I am sure that he won't be the last. Our campaign speaks for the majority of Scots.

"Over the next few months as thousands more people join us in our fight to keep Scotland a part of the United Kingdom, we will see more people, from different walks of life join our team as either directors, staff members or volunteers."

Mr Anderton, who currently works as a management consultant based in Scotland, said: "It is a real honour to be asked to join the board of Better Together.

"I have seen first-hand the advantages of being part of the United Kingdom. Our trading relationships with England, Wales and Northern Ireland are vital to our businesses here in Scotland.

"We should be looking for ways to strengthen these ties, not to throw up unnecessary barriers. I believe that we are stronger when we work together."