One of the fiercest rivalries in sport - the New York Yankees versus the Boston Red Sox - is on the move and heading to London as Major League Baseball flies across the Atlantic to broaden its global reach.
Major League Baseball is making its first foray into Europe, as the Boston Red Sox and New York Yankees will meet in London for a regular-season series in 2019.
The deal is similar to those agreed with NFL American Football and NBA basketball, both of which now hold regular fixtures in London. And Mayor Khan was equally confident that the matches would not rain on the World Cup parade.
The announcement of MLB's arrival in London comes in the wake of discussions between Rob Manfred, the sport's commissioner, and the Mayor of London, Sadiq Khan, and follows the successful introduction of other United States sports into the capital.
Boston Red Sox Principal Owner John W. Henry, who also owns English Premier League soccer club Liverpool, said: "There were significant challenges that had to be overcome".
"There is no better way to start the London Series and the first Major League Baseball fixture in Europe than a clash between two heavyweights of worldwide sport". MLB, which has previously staged regular-season contests in Puerto Rico, Mexico, Japan and Australia, will return to London for another series in 2020, with the participating teams yet to. But two of the best hitting teams in baseball may find at least one thing to their liking: the dimensions of London Stadium. "I can't wait to hear someone shout "play ball" at London Stadium", he added. "All the hard work has paid off".