On July 25, 2007, in the top of the ninth inning in a game between the Angels and Athletics at Angel Stadium, a fan threw a water bottle that hit Piazza, who had homered earlier in the game. Piazza then pointed his bat in the stands at the fan he believed threw the water bottle to get the attention of security. The fan, who was identified as Roland Flores from La Puente, California, was arrested by the ballpark security. Piazza pressed charges against Flores. Flores was sentenced to 30 days in jail and three years of probation on March 27, 2008. On September 26 against the Boston Red Sox at Fenway Park, Piazza hit his 427th and what would be his final major league home run of his career off of rookie pitcher Jon Lester.