Aaron Bates of the Lancaster JetHawks becomes the first player in the 61-year history of the California League to hit four home runs in one game. Amazingly, his teammate Brad Correll will match the feat just 35 days later.

Shea Stadium, home of the New York Mets, becomes a huge recording studio as Sesame Street’s Bob McGrath along with a chorus of 15,000 school children sing an uplifting song to Ronald Sterling, a seven year-old with the immune deficiency disorder Wiskott-Aldrich Syndrome. The non-profit group, Songs of Love Foundation, which creates personalized songs for sick children throughout the country, arranged for the ‘…You’re a Grand Slam’ tune to be sung and recorded at the ballpark, with the baseball-loving youngster listening on the phone.

Jesse Litsch sets a new Toronto Blue Jays record for the longest appearance in a debut, going 8 2/3 innings and allowing only one run on four hits.

In the comeback, which will become known as the Mother’s Day Miracle, the Red Sox rally for six runs in the bottom of the ninth inning to beat Baltimore at Fenway Park, 6-5. Prior to the final frame, Orioles starter Jeremy Guthrie had blanked the opponents on three hits before Boston crossed the plate six times, thanks to two singles, two doubles, three walks, and two errors.

With a dramatic seventh-inning announcement from the owner’s box, the fans are informed Roger Clemens is once again a Yankee. The 44 year-old right-hander agrees to a one-year, $28-million contract, the highest single-season salary ever paid to a major-league player, to come out of retirement again and pitch in pinstripes for the remainder of the season.

Hideki Matsui doubles to left in an at-bat against Jarrod Washburn. It is his 2,000th hit between Major League Baseball and Nippon Pro Baseball and makes him the 46th member of the meikyukai.