Maddie Meyer/Getty Images
BOSTON, MA - DECEMBER 09: David Lee #42 of the Boston Celtics talks with Evan Turner #11 during the second half against the Chicago Bulls at TD Garden on December 9, 2015 in Boston, Massachusetts. The Celtics defeat the Bulls 105-100. (Photo by Maddie Meyer/Getty Images)
David Lee has already made his way to Dallas after being signed to the Mavericks on Monday.
Lee, who was waived by the Celtics on Friday, was spotted by The Dallas Morning News' writers Eddie Sefko and Brad Townsend at shootaround.
Lee told reporters that he's confident he'll be able to help Wednesday against the Thunder, even as he learns a new playbook.