The Pirates power to a 7 – 2 win at Montreal, but lose 3B Jose Pagan when his arm is fractured by a pitch in the 5th by John Strohmayer. He will return to be a World Series hero. Pagan, Willie Stargell and Al Oliverhomer for the Bucs and Gene Alley adds two triples.

On August 5, 1971 — The Pirates power to a 7 – 2 win at Montreal, but lose 3B Jose Pagan when his arm is fractured by a pitch in the 5th by John Strohmayer. He will return to be a World Series hero. Pagan, Willie Stargell and Al Oliverhomer for the Bucs and Gene Alley adds two triples.

Source:
Baseball Reference August 5
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game