Ron Mrozinski

Ronald Frank Mrozinski (September 16, 1930 – October 19, 2005) was an American professional baseball player, a pitcher who played in 37 Major League Baseball games over two seasons, and , for the Philadelphia Phillies. His professional career spanned fourteen years, from until . Born in White Haven, Pennsylvania, he threw left-handed, batted right-handed, and was listed as tall and .

Mrozinski came up through the Phillies' organization, registering double figures in wins during each of his first four pro seasons. Recalled from Triple-A Syracuse in the middle of , he got into 15 games for the Phils, four as a starter, and split two decisions with a 4.50 earned run average in 48 innings pitched. He threw one complete game; ironically, it was the game he lost, 5–2, on September 14 against the St. Louis Cardinals at Connie Mack Stadium. Mrozinski had held the Cards to two runs into the eighth inning before giving up back-to-back home runs to Red Schoendienst (a two-run job) and Rip Repulski.

In , he appeared in 22 games for Philadelphia, making only one start, and was winless in two decisions. He did, however, earn his only MLB save that year when he preserved a 10–8 victory over the Cardinals on June 21. The 1955 campaign was Mrozinski's only full year and his last season on a big-league roster. In his 37 games and 82 innings pitched, he allowed 87 hits and 44 bases on balls; he also struck out 44. Returning to the minors in 1957, he racked up four more years with double-digit victories, and won 119 games overall before retiring from the game.

Ron Mrozinski died at his home in Washington, New Jersey.