During the 1970 campaign, Clemente compiled an average of .352; the Pirates won the National League East but were subsequently eliminated by the Cincinnati Reds. In the offseason, Clemente experienced some tense situations while he was working as manager of the Senators and when his father, Melchor Clemente, experienced medical problems and was subjected to a surgery.
In the 1971 season, the Pirates won the National League and faced the Baltimore Orioles in the World Series. Baltimore had won 100 games and swept the American League Championship Series, both for the third consecutive year, and were the defending World Series champions. The Orioles won the first two games in the series, but Pittsburgh won the championship in seven games.
This marked the second occasion that Clemente had won a World Series with the Pirates. Over the course of the series, Clemente batted a .414 average (12 hits in 29 at-bats), performed well defensively, and hit a solo home run in the deciding 2-1 seventh game victory. Following the conclusion of the season, he received the World Series Most Valuable Player award. Struggling with injuries, Clemente only managed to appear in 102 games in 1972, but he still hit .312 for his final .300 season.
On September 30, 1972, in a game at Three Rivers Stadium, he hit a double off Jon Matlack of the New York Mets for his 3,000th hit. It was the last at-bat of his career during a regular season, though he did play in the 1972 NLCS playoffs against the Cincinnati Reds. In the playoffs, he batted .235 as he went 4 for 17. His last game ever was at Cincinnati's Riverfront Stadium in the fifth game of the playoff series.
Roberto Clemente during the 1970's