THE infamous rivalry between two of the tennis world’s biggest names, Björn Borg (Sverrir Gudnason) and John McEnroe (Shia LaBeouf), seems inherently destined to be explored on the big-screen, such is the nature of the classic battle between two complete opposites.

The film focuses on the lead-up to the pair’s legendary face-off at Wimbledon in 1980 that could give Borg his fifth consecutive Wimbledon title but could also see him usurped as world number one by McEnroe.

It’s interesting to see the contrast between the two writ large on-screen, conflicting Borg’s almost robot-like strict preparation (including standing barefoot on dozens of rackets to test the tightness of the strings) with McEnroe’s famously hot-headed temperament that led to his angry outbursts at the umpire.

But despite its equal title, the film feels like it short changes McEnroe’s story in favour of exploring Borg’s more thoroughly. Much of the flashbacks and off-the-court drama lean heavier on the background and motivations of the Swede, from his childhood in Stockholm to how he teamed up with his trainer Lennart Bergelin (Stellan Skarsgård). Quite apart from him being a dead ringer for the man himself, Gudnason plays him with the cool-as-a-cucumber objectivity that perfectly captures the towering real-life sportsman.

It’s LaBeouf’s fittingly larger-than-life performance that does much of the heavy lifting on McEnroe’s side; the actor really dives into the portrayal with both feet, raging with the “you can’t be serious!” exclamations that still ring in the ears of tennis fans while also finding grace notes that lifts the performance beyond the kind of caricature it so easily could have become.

For the most part the film follows along a fairly standard sports biopic path that somewhat strangles the exploration of divergent personalities buried inside. But it also sends us off on a high with a thrilling depiction of the Wimbledon final the two men have worked so hard to reach.

Director Janus Metz finds new ways to make the sport cinematic with every tension-filled point given. He conveys the sense that, for many tennis fans, a single match can feel like that’s all that matters. It’s just a shame that, as a supposed equal-footing biopic, it always feels so one-sided.