You Gotta Be a Football Hero (1935)

Popeye and Olive are attending a football game; Bluto's team takes the field, and Olive is swept off her feet, becoming a cheerleader for him. Popeye signs up and becomes quarterback of the opposing team, which is skinny and pathetic looking, compared to Bluto's team of huge bruisers. Things go badly, of course, until Popeye eats his spinach and becomes a whole football team himself, winning both the game and Olive.