If you wanted to know what Kyrie Irving did which might have added the fuel for the idiot fan to throw a water bottle at him, here you go:
Kyrie Irving decided to be "extra" (to use his word) and felt the need to pull this stunt after the Nets win pic.twitter.com/eavX94hv0N
This by know means let's the knucklehead (as Marcus Smart correctly labeled him) off the hook. Still was a dumb thing to do. But this is also some petty, disrespectful stuff from Kyrie. It was his way of saying FU back to the Boston crowd.