May 28. Warren Spahn twirled a 7-hitter, as the Boston Braves beat the Giants 4-1, dropping the Giants to 20-20 for the season. The lone bright spot: the first major league hit of rookie centerfielder Willie Mays, a fourth inning home run.
May 25, 1951. Brian Sabean announced that the 18-19 Giants had purchased the contract of outfielder Willie Mays from Minneapolis in the American Association. Mays was batting .477 for the Millers, and reports on his defense are outstanding. Bruce Bochy announced that Mays would start tonight against Philadelphia.
May 30: The Giants split a double-header against the Braves today, winning the opener 6-5, and losing the nightcap, 6-3. Rookie centerfielder Willie Mays, now 1-21 for the season, was lifted for pinch-hitter Don Mueller in the 8th.
June 1: The Giants lost again today, amid reports of a growing conflict between manager Bruce Bochy and General Manager Brian Sabean. At issue: the play of rookie centerfielder Willie Mays, now mired in a 1-25 slump.
June 3: Another Giants loss as Bruce Bochy again tried to shake up the lineup, moving Bobby Thomson to right field and Monte Irvin to center, benching rookie centerfielder Willie Mays. "Mays has some value as a pinch-runner and late inning defender, " said Bochy, "but he's really pressing at the plate. We'll give him a few days off."
June 30: The Giants, now mired in fifth place at 32-39, announced today that rookie centerfielder Willie Mays would be sent back to Minneapolis, allowing them to bring up outfielder Jack McGuire. "McGuire will fill out our bench," said manager Bruce Bochy. "And we still like Mays. He's a good defensive outfielder and baserunner, and we think he may hit a little, in time. But the young man's not ready for the majors, and with his military obligation coming up next spring, who knows about his future. But we certainly wish him the best."