Ms Markle, 36, who attended a Catholic school as a child but identifies as a Protestant, will be baptised and confirmed into the Church of England before the wedding.
And it has thrown into doubt whether FA president Prince William - Harry's brother - will present the trophy to the winning captain as usual.
Facebook Plans Pre-Roll Advertisements
It [Facebook] said the initial test it carried out showed that satisfaction improved by 18 percent when Ad Breaks were delayed. It would be safe to say that the average Facebook user may be spending more time consuming video content than anything else.
It's pretty unusual for a royal wedding to be on a Saturday, as they normally take place on a weekday - the Queen was married on a Thursday and the Duke of Cambridge and Catherine married on a Friday.
But the security costs for the event are falling to the taxpayer. More are expected to tune in for Prince Harry, thanks to Markle's US ties.
Oil prices hold steady on competitive data, North Sea outage
Many analysts remain uncertainty about the volume of shale to come in 2018, but the general consensus is that it will be higher. Energy Information Administration that total U.S. oil production next year could set a record at 10 million barrels per day.
Reacting to the clash with the cup match, an FA spokesman said the organisation was "delighted" for Prince Harry and Ms Markle.
This will break a long-standing royal tradition as Markle will become the first royal fiancée to spend Christmas Day with the royal family.
"The point is that our society is one of mixed heritage and it's nice to see Meghan within the Royal family".
'Magical' Geminid meteor shower captured by photographers
NASA will stream the Geminid shower live starting at sunset from its Marshall Space Flight Center in Huntsville, Alabama. The Geminid meteor shower is named for the constellation Gemini, from which the shooting stars appear to originate.