Serena Williams won the 2015 French Open to capture her 20th career major, but not without adversity.
After her third-round match, Williams begin to fall ill.
By the time her semifinal match against Timea Bacsinszky rolled around, she was feeling downright awful. Her flu symptoms had intensified, and she was dealing with intense nausea, fatigue, sweating and more.
The start of the semifinal match went about how you'd expect for the flu-addled Williams; she looked slow and lethargic while dropping the first set.
But then, a switch turned on.
Serena began playing like her usual self (despite severe coughing fits during breaks) and won the final two sets—including the last 10 consecutive games—to secure a victory.
After the match, she told ESPN, "I don't think I've ever been this sick. I didn't expect to win that. I can't believe I won."
In the 36 hours following the match, Serena barely left her bed. She finally felt a bit better on the morning of her finals matchup against Lucie Safarova.
Despite match time temperatures hovering around 80 degrees, Serena prevailed in three sets.
"This is by far the most dramatic [major title I've won]," Williams told NBC's Mary Carillo afterward. "I didn't even train yesterday, I've had the flu . . . it's just been a nightmare."