In the middle of the 1987 season, however, Witt suddenly lost his overpowering stuff and saw his strikeout numbers decline significantly. He did manage to combine with starter Mark Langston to pitch a no-hitter on April 11, 1990, against Seattle, pitching the last two innings. Combined with his perfect game this makes him the only pitcher to throw a complete game no-hitter and also appear in relief for a combined no-hitter. Witt was traded to the New York Yankees on May 11, 1990, for Dave Winfield, never winning more than five games during his three years there before retiring in 1993.