Mo Vaughn was one of the top sluggers of the ’90s but he also has the distinction of being one of the worst free agent signings in MLB history. The Angels signed the Red Sox slugger after the 1998 season for six years, $80 million. As SI’s Cliff Corcoran notes, Vaughn saw his production plummet when he left Fenway Park after the 1999 season (from a 148 OPS+ in his last six seasons there to a 117 OPS+ in his first two seasons in Anaheim), after which his body began to break down. He missed the 2001 season and was traded to the Mets that summer. (Harry How/Getty Images)
CORCORAN: The 10 Worst Free Agent Signings in MLB History

Mo Vaughn was one of the top sluggers of the ’90s but he also has the distinction of being one of the worst free agent signings in MLB history. The Angels signed the Red Sox slugger after the 1998 season for six years, $80 million. As SI’s Cliff Corcoran notes, Vaughn saw his production plummet when he left Fenway Park after the 1999 season (from a 148 OPS+ in his last six seasons there to a 117 OPS+ in his first two seasons in Anaheim), after which his body began to break down. He missed the 2001 season and was traded to the Mets that summer. (Harry How/Getty Images)

CORCORAN: The 10 Worst Free Agent Signings in MLB History

Yankees outfielder Andruw Jones blasts a solo home run during the first game of Saturday’s day-night doubleheader against the Red Sox. Jones hit four home runs during the weekend series as New York took three out of four from their longtime rivals. The Yankees head into the all-star break with the best record in baseball.  (AP Photo/Elise Amendola)
GALLERY: Iconic Photos of the New York Yankees | Boston Red Sox

Yankees outfielder Andruw Jones blasts a solo home run during the first game of Saturday’s day-night doubleheader against the Red Sox. Jones hit four home runs during the weekend series as New York took three out of four from their longtime rivals. The Yankees head into the all-star break with the best record in baseball.  (AP Photo/Elise Amendola)

GALLERY: Iconic Photos of the New York Yankees | Boston Red Sox