Game 5, 1997 NBA Finals vs. the Jazz, series tied 2-2. A gravely ill Michael Jordan steps up and delivers arguably the most clutch individual performance of all time, and this was on the road no less. Jordan finished with 38 points in 44 minutes. And in the final moments with the Bulls certain of a narrow victory, Jordan collapsed into Scottie Pippen's arms in one of the most iconic sports images of all time.
We would have no "flu game" to compare a hobbled or sick player's epic performance.