One of the earliest, and most high profile, example of a transfer being cancelled due to medical issues in the UK was in November 1971 when Asa Hartford's transfer to Leeds United from West Bromwich Albion collapsed. Amidst a high level of publicity, the two clubs had agreed a fee of £177,000, a then record for Leeds United; but a medical examination found Hartford had a pin-sized hole in his heart, a slight defect he had been born with but had never impacted the progression of his career. On the advice of their medical staff, Leeds United cancelled the transfer. Despite this, Hartford went on to have a long successful playing career, including appearing for Scotland in the 1978 and 1982 World Cups, with his minor heart defect never causing an issue.