As sporting rivalries go, it doesn't get much bigger than the Boston Red Sox and the New York Yankees.
When these legendary teams face each other in London this June, it will mark an exciting chapter for 'The Rivalry', which has more than a century of rich history.
In the timeline below, we take a look at some of the defining moments in the last 100 years that have helped shape and mould this rivalry to be the fiercest in American sport.
From 'curses', periods of dominance, epic comebacks and the odd raised temper, it's had everything. As a result, there will be far more at stake than bragging rights at London Stadium this summer.
Boston Dominate Early
Boston entered the American League and dominated early on, winning all five World Series that they played in - 1903, 1912, 1915, 1916, 1918
Curse of the Bambino
Red Sox owner Harry Frazee sold star player Babe Ruth to the Yankees; kicking of a period known as 'The Curse of the Bambino' in which the Red Sox failed to win a championship for the next 86 years.
New York Dominant
Across the next 86 years New York established themselves as the dominant force in baseball, winning 26 World Series Championships while boasting many legends of the game.
After starting the season strong Boston led the Yankees in the standing by 14 games, but after a swing in fortunes for both clubs New York had managed to whittle down the lead to four games, just in time for a four-game series between the rivals. The teams finished the season tied for first place in the American League East Division, forcing a tie-breaker game. The Yankees came out on top, going on to win the 1978 World Series Championship.
Rivals meet in the playoffs
For the first time ever the two sides met in the best-of-seven American League Championship Series (ALCS), in which the winning team would book their play in the World Series final. The series only lasted 5 games as the Yankees dominated the Red Sox before going on to win the 1999 World Series Championship.
Emotions run high
The teams met once again again in the ALCS, this time with the Red Sox entering as firm favourites. Emotions hit boiling point in Game 3 after a disputed pitch, leading to both teams' benches clearing for an all-out brawl. The Yankees would go on to win the best-of-seven series 4-3, once again coming out on top of the Red Sox.
End of the Curse
After losing their two previous ALCS matchups against the Yankees in 1999 and 2003, the Red Sox entered the 2004 series with a point to prove. After falling to a 3-game deficit to the Yankees it appeared history was repeating itself. This was until Boston rallied to win the series 4-3, which remains as the only time a team has turned over such a deficit in the playoffs. With the Yankees beat the Red Sox went on to be World Series Champions, breaking 'the Curse of the Bambino' 86 years after his sale.
Red Sox Rising
With 'the Curse of the Bambino' firmly broken the Red Sox established a period of success, winning the 2007 and 2013 World Series. Between these wins the Yankees won a World Series of their own in 2009; their most recent World Series Championship.
After finishing the regular season with a new franchise record of 108 wins, Boston entered the 2018 playoffs as favourites to win it all. Meeting the Yankees in the best-of-five American League Division Series (ALDS), the Red Sox needed just 4 games to beat their rivals en-route to defeating the Los Angeles Dodgers for the 2018 World Series Championship.
Mitel & MLB Present London Series
The latest chapter of this fierce rivalry will unfold at the Mitel & MLB Present London Series 2019 as the two teams are set to take part in the first ever MLB games to be played in Europe. The two game series will be played at the London Stadium June 29 - 30 2019 as this Old Rivalry hits New Ground.