Rob Sperring

 ( 1949 Births ) 

Robert Walter Sperring (born October 10, 1949) is a former professional baseball player who played for the Chicago Cubs from 1974 to 1976 and the Houston Astros in 1977. He was involved in a pair of transactions separated by months of each other just before the start of the season. He was traded along with Bill Madlock from the Cubs to the San Francisco Giants for Bobby Murcer, Steve Ontiveros and minor-league right-handed pitcher Andy Muhlstock on February 11. "Madlock Goes to Giants As Cubs Obtain Murcer," The Associated Press (AP), Friday, February 11, 1977. Retrieved February 14, 2023. He never appeared in a regular-season game with the Giants who dealt him along with Willie Crawford to the Astros for Rob Andrews and cash during spring training on March 26. "Pro Transactions," The New York Times, Sunday, March 27, 1977. Retrieved February 14, 2023.