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1977 – Astros obtain outfielder Willie Crawford and infielder Rob Sperring from San Francisco for infielder Rob Andrews. After the season, outfielder Art Gardner is sent to the Giants to complete the deal. 

1977 – Astros obtain outfielder Willie Crawford and infielder Rob Sperring from San Francisco for infielder Rob Andrews. After the season, outfielder Art Gardner is sent to the Giants to complete the deal. 

Infielder Rico Petrocelli is released by the Boston Red Sox after a 13-season career for his only major league club
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Infielder Rico Petrocelli is released by the Boston Red Sox after a 13-season career for his only major league club

Infielder Rico Petrocelli is released by the Boston Red Sox after a 13-season career for his only major league club. Petrocelli retires with 210 home runs and two All-Star appearances.