Gary Lineker has apologised after he was seen without a face covering in a Marks and Spencer shop.The 59 year old former footballer blamed his old age and said he felt “awful and embarrassed” after he was photographed without a face mask on while browsing the desserts at his local M&S in Barnes, south London, on Sunday.The Match of the Day presenter, who recently hared a rare picture with his four sons, tweeted an apology on Monday 19 October.