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Cloninger, only pitcher with 2 slams in 1 game, dies

12-year veteran accomplished feat with Braves, also spent years as Yankees coach and in Red Sox organization
MLB.com @DKramer_

The Red Sox on Saturday announced that they are sending along condolences for former player and player development consultant Tony Cloninger, who passed away on Tuesday. He was 77.

A 12-year big leaguer who is best remembered for being the only pitcher in MLB history to hit two grand slams in a single game, doing so for the Braves on July 3, 1966, at Candlestick Park, Cloninger had been in his role with the Red Sox since 2005.

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The Red Sox on Saturday announced that they are sending along condolences for former player and player development consultant Tony Cloninger, who passed away on Tuesday. He was 77.

A 12-year big leaguer who is best remembered for being the only pitcher in MLB history to hit two grand slams in a single game, doing so for the Braves on July 3, 1966, at Candlestick Park, Cloninger had been in his role with the Red Sox since 2005.

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After retiring after the 1972 season, Cloninger got back into pro baseball in 1988, then was bullpen coach for the Yankees from 1992-2001, overseeing a relief unit that contributed to four World Series titles. He joined the Red Sox the following year as pitching coach, and remained with the team until his passing, leaving for a period as he recovered from treatment for bladder cancer during the early part of his tenure.

Cloninger spent most of his big league career with the Braves, from 1961-68, and was with the club when it moved from Milwaukee to Atlanta. He also played for the Reds (1968-71) and Cardinals (1972). In that stretch, Cloninger went 113-97 with a 4.07 ERA over 1,767 2/3 innings across 352 outings, including 247 starts. Cloninger also holds the Braves' record for RBIs in a single game by a pitcher game, with nine.

Cloninger is survived by his four children, as well as nine grandchildren and three great-grandchildren.

Daniel Kramer is a reporter for MLB.com based in Denver. Follow him on Twitter at @DKramer_.

Atlanta Braves, New York Yankees, Boston Red Sox