The Red Sox policy on retiring uniform numbers was once one of the most stringent in baseball—the player had to be elected to the National Baseball Hall of Fame, play at least 10 years with the team, and retire as a member of the Red Sox. The final requirement was waived for Carlton Fisk as he had finished his playing career with the Chicago White Sox. However, Fisk was assigned a Red Sox front office job and effectively "finished" his baseball career with the Red Sox in this manner. In 2008, the ownership relaxed the requirements further with the retirement of Johnny Pesky's number 6. Pesky has not been inducted into the Hall of Fame, but in light of his over 50 years of service to the club, the management made an exception. Pesky would have had 10 seasons, but he was credited with the three seasons he served as an Operations Officer in the U.S. Navy during World War II. The most recent number retired was 34, worn by 2013 World Series Most Valuable Player David "Big Papi" Ortiz.