No, Portland Trail Blazerspoint guard Damian Lillard is not a Golden State Warriors fan.
He's just a proud Oakland native who decorated his chest with one of the city's iconic images, the same image that will be featured on the Warriors' new alternate jerseys:
The image in Lillard's tattoo and on the Warriors jersey is of the Jack London Oak at Frank Ogawa Plaza near City Hall, which is featured on Oakland street signs. Lillard has had the tattoo on his chest since at least June 2013, based on his Instagram.
The Warriors will host the Trail Blazers on Dec. 11 for the teams' first meeting of the season.
Damian Lillard has tattoo of Oakland tree featured on Warriors' alternate jerseys