US Open 2015: Flavia Pennetta wins historic title, retires

US Open 2015 got its women's singles champion in Flavia Pennetta of Italy. Pennetta won her first Grand Slam. (Source: AP)

Flavia Pennetta defeated Roberta Vinci 7-6, 6-2 in an all-Italian final. (Source: AP)

Flavia Pennetta did something more than just winning the US Open title. She announced her retirement from tennis just after the win. (Source: AP)

Roberta Vinci, also from Italy and the player who shocked Serena Williams in the semis, ended as the second best in the tournament. (Source: AP)

Flavia Pennetta poses for the photos. She became the first Italian women's player to win the US Open. (Source: Reuters)

Flavia Pennetta throws up her arms in jubilation after she down Roberta Vinci in the final. (Source: Reuters)

Flavia Pennetta and Roberta Vinci embrace each other after the former beat the later in the US Open 2015 women's singles final in New York. (Source: AP)

Flavia Pennetta played some dominating tennis in the match and won it in straight sets. (Source: AP)

Roberta Vinci stretched the first set into the tiebreaker but had no answer to Flavia Pennetta in the second and lost it 2-6. (Source: AP)