That would be Stephen Strasburg, who went from terribly ill on Tuesday to terrifically filthy on Wednesday in a must-win Game 4 of the National League Division Series presented by T-Mobile.
The Nats prevailed, 5-0, regaining home-field advantage against the defending World Series champion Chicago Cubs.
Strasburg struck out 12 in seven shutout innings on a misty, windy evening at historic Wrigley Field, forcing a Game 5 in Washington on Thursday that will send the winner to Los Angeles and a date with the top-seeded Dodgers.
But first things first. On Wednesday, Strasburg dominated for seven strong innings and got some huge help from Michael Taylor's grand slam.