When "the greatest rivalry in sport" resumes on Saturday afternoon, it will do so in a completely new setting.
A completely new environment. A completely new stadium. A completely new country.
Major League Baseball's push into the UK and Europe sees America's pastime attempt to "grow its footprint" on this side of the Atlantic.
And what better way than with MLB's oldest and biggest rivalry, between the two most iconic names in the sport: New York Yankees and Boston Red Sox.
West Ham United's London Stadium has been transformed ahead of the arrivals for the clash between baseball's biggest side and it's current champions; between them the pair have won the World Series 36 times.
Now, 100 years after their rivalry really kicked into gear with the trade of legendary Babe Ruth from the Sox to New York, they begin a new chapter, in their 2263rd meeting.
Ruth won three World Series titles in Boston, before being sold on Boxing Day 1919 by Red Sox owner Harry Frazee - a theatrical agent who used much of the money to pay off other debts - and the 'Curse of the Bambino' began.
For 86 years, Boston couldn't land the big one. The first dynasty of the 20th century, the Red Sox failed to manage another World Series until 2004 (ironically coming from three games down in a best-of-seven to defeat the Yankees for the American League en route), spending much of their time in the relative doldrums.
As they faltered, the Yankees took charge. Led by big-hitting Ruth, the Yankees landed their first World Series title in 1923 and dominated from thereon in.
In 2000, they landed their 26th World Series in 77 years, a phenomenal achievement. It was a prolonged period of achievement, while their rivals floundered, giving the rivalry a one-sided look.
"They looked at us with jealousy and the truth is we were looking for the next title," Yankees museum curator Brian Richards told Mirror Sport on a trip to the Bronx recently.
"We had great players looking to win and win again and they were left largely in the Yankees shadow."
Not that that ever stopped the battles, fights, boos and "Boston/Yankees sucks" chants.
"The best, the biggest and oldest history we have," us how Alex Rodriguez, a legendary former Yankee terms it.
"We're going back to the last century to get to the beginning, thinking about Ruth and getting traded from one to the other, being a great pitcher and then maybe the greatest slugger of all time.
"It's been 100 years of an absolute battle between two great markets with two incredibly smart fan bases. It's 24/7, especially in this era more than ever."
In many ways this is America's version of Liverpool vs Manchester United, and throughout its 115-plus years, it has been every bit as intense.
"A fight was ready to break out pretty much anytime and anywhere when those two teams played," said David Wells recently, speaking to CNN about the rivalry having been on both sides of the fence.
"That's what made it so great. Everything was under a microscope because anything could set light to that fuse."
Don't be surprised if sparks fly in Stratford.
Watch the MLB London Series: Boston Red Sox v New York Yankees live on BT Sport 1 on Saturday June 29th & Sunday 30th June. Visit bt.com/sport
