Encapsulated and graded NM 7 by PSA, with the signature graded "10" by PSA/DNA (64328481). This is the sole example of this signed ticket in PSA's census reporting. Roger Clemens' 20 s strikeout game against the Seattle Mariners on April 29, 1986, was the first time in history that a pitcher struck out that many batters in a single game. The Red Sox defeated the Mariners 3-1 in front of 13,414 fans. Clemens' flowing signature appears in blue marker across the ticket's midsection. A wonderful collectible from one of the most dominating pitching outings in MLB history, signed by the man who was the first to strike out 20 players in a game.