Sportspeople from Corona

Stephen Stepanovich Rachunok (a.k.a. "The Mad Russian") (December 5, 1916 – May 11, 2002), was a professional baseball pitcher in Major League Baseball for the Brooklyn Dodgers.
A native of Rittman, Ohio, Rachunok appeared in two games during the 1940 season, one as a starter, where he pitched a complete game. His Major League Baseball (MLB) debut came on September 17, 1940, where he pitched the top of the ninth inning, surrendering 1 walk while striking out 1 as the Dodgers were defeated 5–0 by the visiting St. Louis Cardinals at Ebbets Field. His only other MLB appearance came 9 days later in the second game of a doubleheader at Ebbets Field when facing the Boston Bees surrendering 5 runs (all earned), striking out 9, while walking 4, en route to a 5–4 loss.Rachunok died on May 11, 2002, in Corona, California.

Robert Charles Nieman (January 26, 1927 – March 10, 1985) was an American professional baseball player and scout. An outfielder, he spent all or parts of a dozen Major League Baseball seasons with the St. Louis Browns (1951–52), Detroit Tigers (1953–54), Chicago White Sox (1955–56), Baltimore Orioles (1956–59), St. Louis Cardinals (1960–61), Cleveland Indians (1961–62) and San Francisco Giants (1962). He also played one season in Japan for the Chunichi Dragons (1963). He threw and batted right-handed, stood 5 feet 11 inches (1.80 m) tall and weighed 195 pounds (88 kg).