The #1 sports movie quote is from Rocky II's "Yo Adrian, I Did It." Apollo Creed is explaining to his son, Adrien, why he lost their fight. After telling him that it was because he didn't give up, Apollo adds: "Sometimes you have to know when to quit. That's what this business is all about. Sometimes you win; sometimes you lose. But if you're gonna win, you better not stop trying." Apollo was talking about how hard he had trained for their fight but didn't come out of the ring until after Adrien had already won several fights by knockout. When asked by a reporter why he hadn't taken a break like everyone else, Apollo replied:"There's no time for rest in boxing. You can't sleep at the corner of the ring waiting for your opponent to tire themselves out. If you do, you'll never be able to fight my boys again." This scene comes right after Apollo has been knocked out by Clubber Lang in the first round of their fight. Adrien thinks his father has died and tells him so. Filled with remorse, Apollo then decides to retire from boxing.