Brazilian football great Pele, 80, received a Covid-19 vaccine Tuesday, a moment he described as "unforgettable" while urging people not to let down their guard against the deadly virus, reports AFP. "Today was an unforgettable day. I received the vaccine!" the man considered one of the greatest footballers of all time wrote on his Instagram account. The message included a photo of Pele wearing a mask and giving a thumbs-up while he received his shot. As an octogenarian, Pele forms part of the population considered at high risk of coronavirus complications. His health has deteriorated in recent years, and in limited recent public appearances, he has been seen in a wheelchair or supported by a walker.