The midfielder is set to line-up for Wales in the World Cup qualifier at Old Trafford.
Turn the clock back 14 years and his uncle scored in one of the most famous wins in Welsh football history.
Simon's uncle is Ian Walsh, the former Crystal Palace striker was on target as Wales beat England 4-1 at Wrexham's Racecourse Ground on May 17, 1980.
Walsh is best known for his seven years at Palace where he won his 18 caps for Wales before stints bach home at Cardiff and Swansea. He is now better known as the voice of Welsh football on the BBC and has commentated many times on his nephew.
Simon said: "Yes, my uncle scored in that win against England. I've been speaking to him lately and he's told me all about it so we'll have to do it as well.
"It's been such a long time since we played and a shame the home nations don't play each other more.
"They were always great games with fantastic atmospheres. This will be one to savour. My uncle played in all those home country games and he said they were big highlights for him."
Simon added that he expects the game to be 'bang, crash, wallop' at the start and that although Wales will be aware of England's quality - including his team-mate Jermain Defoe - they have to believe in themselves at Old Trafford.
He said: "Some games like this when they are built up can flatter to deceive but with this being two British teams I can imagine it will be crash, bang wallop for the first 20 minutes and then it will settle down.
"That's when we'll have to be aware of England because they have great quality all over the pitch.
"But we've got players who can hurt teams as well so I'm sure if we keep it tight we'll have chances.
"We do need something. We haven't started well so realistically we need points from the next two games to be right back in there. We've Poland as well and they will be tough next week."
Simon Davies has a family tradition to uphold when he lines-up against England on Saturday.