Being sick is certainly no fun.
Your head hurts.
Your stomach aches.
All you're really capable of doing is lying on the couch.
But for a select number of athletes, even extreme illness can't keep them from achieving greatness.
The classic case is Michael Jordan in Game 5 of the 1997 NBA Finals, a performance that's so iconic it birthed the term "flu game".
However, MJ isn't the only pro athlete who has played spectacularly despite feeling like garbage.
STACK looked back through history to find the six greatest "flu games" of all time.
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