In an interview with Grantland, Dudley also called Wizards rookie Kelly Oubre Jr. Kelly “Osbourne” and apologized for it.
Pierce said the decision came down to giving himself the best chance to win a second championship.
The Wizards will still own the second-round picks rights.
Oubre scored 30 points in the Wizards' 97-89 win over the Denver Nuggets.
The Wizards will still own the second-round pick's rights.
The power forward is cognizant that his athleticism surprises some people.
And he's making the most of the opportunity, averaging 15.7 points and 9.7 rebounds in three games entering Wednesday.
Pierce signed a three-year contract worth $10 million after one season with the Wizards.
Wall sustained five fractures in his left hand and wrist in the second round of the playoffs.
The Wizards notched their first win in summer league action, beating the Mavericks, 85-79.