Sir Martin Sorrell on the mend after receiving keyhole surgery to remove a tumour

Sir Martin Sorrell has had keyhole surgery to remove a tumour.

The marketing guru told staff at his company S4 Capital that he has made an ‘excellent recovery’ after the operation in February.

The 78-year-old said it was ‘business as usual’ – but added he will be taking ‘preventative treatment over the coming months’ and will reduce the amount of travel he does while he recovers.

Operation: Sir Martin Sorrell told staff at his company S4 Capital that he has made an ‘excellent recovery’ after having keyhole surgery to remove a tumour

Sorrell said: ‘I wanted to update you following the successful keyhole surgery I had in February, which was to remove a tumour. 

‘I have made an excellent recovery, and, as you would expect, I have sought the best possible medical advice.

‘My conclusion is that I should have preventative treatment over the coming months. My doctors have advised me that during this treatment, I should be able to work as normal most of the time, although I have also decided to reduce my travel schedule for a few weeks. Otherwise, business as usual.’

S4 Capital was established by Sorrell in 2018 after he left WPP following investigations into his conduct. Shares dropped 0.9 per cent yesterday.