Dudley is expected to miss three to four months while rehabbing.
Wizards president Ernie Grunfeld said Dudley and his agent informed the team that he played a significant part of last season while with the Milwaukee Bucks in pain due to the injury.
The Bucks traded Dudley to Washington on July 9 in exchange for a protected second-round draft pick.
“Although I'm disappointed that I won't be on the floor with my new teammates for the start of training camp, I'm confident that having this surgery now will allow me to perform at my best and contribute throughout the season,” said Dudley. “I appreciate the patience and support of the organization and I can assure my teammates and the fans that I will work extremely hard to be on the floor as soon as possible.”
Dudley, 30, averaged 8.2 points and 3.1 rebounds in 72 games last season while shooting 38.5% from three-point range.
- Molly Geary