Glenn Barratt, 51, spent nearly three weeks on a ventilator fighting for his life after he contracted the virus while at the pub watching the Three Lions play against Croatia.
Glenn, a lifelong Grimsby Town fan, went to his local social club The Old Clee Club to watch the England v Croatia game on 13 June.
But in the following week, he began to suffer from a chesty cough and was eventually left bedridden and unable to breathe.
Glenn was rushed to hospital where he was diagnosed with Covid-19.
Before he was placed in an induced coma on 25 June, Glenn told the nurses caring for him that he wished he had been vaccinated.
Glenn sadly died at the Princess of Wales Hospital in Grimsby, Lincolnshire on 13 July.
‘I would like people to think twice about not having the vaccination’
Speaking after Glenn’s death, his cousin, Ken Meech, 57, said he believes if Glenn had got his two Covid jabs he would still be here today.
He said Glenn, who lost his spleen after a motorbike accident ten years ago, had concerns about the vaccinations and chose not to have it.
Ken, who described Glenn as his “big brother”, has now made a plea to others to get their Covid vaccinations.
He said it would mean everything to their family if it saved even just one more life.
Ken said: “We had our lives turned upside down in just a short period of time.
“I think if he was vaccinated, he’d still be with us. He’d at least have a better chance.
“I would like people to think twice about not having the vaccination. He’s like my brother and we lost somebody so close to us.
“If anything comes out of his legacy, if we can maybe save a life that would please me very much.
“It’s so sad that this has cost him his life.”
Ken said Glenn's father Ray, 72, also tested positive for Covid after the match - but he had been double jabbed and is in good health.
Ken said he was left heartbroken as he was unable to visit Glenn in hospital due to Covid restrictions.
He said: “It was just devastating to see him go through that. Personally, we all knew about Covid, and we’ve seen the news about other families.
“But the heartache is not being able to see him. Knowing he’s on his own. It’s just heart-breaking.
“Not even his mother and father could be with him.”
Ken paid a heartfelt tribute to Glenn, saying he had the ‘most infectious smile’ and he would never forget him.
He said: “I remember Glenn as someone I could talk to and get support from. We did many trips away together, we followed our local football team.
“We’ve had the best times, being lads.
“He was always a good friend. I will miss his infectious smile, I’ll miss it so much.
“He was somebody who walked in a room with his big smile and would just always be pleased to see you.”
A crowdfunding page has been set up to cover the costs of Glenn's funeral.
Visit the JustGiving page to donate.