Tennis is a solitary pursuit, like boxing, and when the reflexes slow and the legs go, the contrast is more obvious and stark.
Rugby, a team game, is very different to an individual pursuit like boxing, but it is a game of physical and mental extremes, and the two sports have pressures in common.
Another fantastic film was T-Rex, the story of Claressa "T-Rex" Shields' pursuit of Olympic boxing gold in London.
"Critics were very tough on Hot Pursuit," said Paul Dergarabedian from box office analysts Rentrak.
In the run-up to the election last year, he was constantly baring his biceps, as if one little glimpse of manly muscles, encased in milky white skin as soft and smooth as the baby he christened on Friday, would have us marching to the ballot box in pursuit of a more purposeful world.
Should we stop exhausting ourselves in our pursuit of hollow tick boxes and instead focus on campaigning for the more meaningful social change that will nurture a healthy and diverse cultural landscape in the long term?
Sure, not everyone who rolled across those tiles went on to a successful skate career, but many leveraged their experiences into other out-of-the-box pursuits.
We interrupt the Year of the Pitcher to bring a compelling second-half story line from the batter's box: Miguel Cabrera's pursuit of the first Triple Crown in baseball in 43 years.
Zou is a boxer whose assets include two Olympic gold medals and a team of promoters intent on transforming him into China's first professional-boxing star; in pursuit of this goal, they placed him on Pacquiao's undercard.
This latest documentary from Frederick Wiseman observes Lord's Gym, where age, race, sex, ethnicity and social class blur in the pursuit of the sport of boxing; where some students seek to become professionals, others are satisfied to remain amateurs, and all hope to fulfill a dream.
