Dave McNally wins his 20th game for the fourth consecutive season when he blanks New York at Yankee Stadium, 5-0. The southpaw becomes the first of the four 20-game winners on the club, which will include Jim Palmer, Mike Cuellar, and Pat Dobson.

On September 21, 1971 — Baltimore Orioles Dave McNally wins his 20th game for the fourth consecutive season when he blanks New York at Yankee Stadium, 5-0. The southpaw becomes the first of the four 20-game winners on the club, which will include Jim Palmer, Mike Cuellar, and Pat Dobson.

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