The premiere of "Borg/McEnroe," which stars Shia LaBeouf as McEnroe and Sverrir Gudnason as Borg, re-enacts the legendary on-court battles between the volatile American and his cucumber-cool Swedish rival.
"The story of this nail-biter matchup changed the sport of tennis forever, and the outstanding performances from LaBeouf and Gudnason will be a spectacular way for festival- goers to kick things off," said TIFF director Piers Handling.
The film, which will open North America's largest film festival on September 7, is a change in scenery for director Janus Metz, whose award-winning documentary "Armadillo" focused on Danish troops serving in Afghanistan.
McEnroe frequently clashed on court with the Swede, whose cool composure provided a stark contrast in their face-offs in the late 1970s and early 1980s. They played 14 times in all -- each won seven times.
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"The on-court scenes have the dynamism of a street battle, and the drama peels back layers from what we know about both players," said the festival's artistic director, Cameron Bailey.
"Borg/McEnroe" is the second tennis movie on the TIFF schedule -- "Battle of the Sexes," the story of tennis legend Billie Jean King's showdown with Bobby Riggs starring Emma Stone and Steve Carell, is also in the line-up.
The Toronto film festival, which runs this year through September 17, has become a launch pad for Oscar-conscious studios and distributors, attracting hundreds of filmmakers and actors to the red carpet in Canada's largest city.