CHARLOTTE, N.C. — LaMelo Ball was just as thrilled as anybody. When news first broke three weeks ago about the impending arrival of Isaiah Thomas, an unexpected move by Charlotte Hornets general manager Mitch Kupchak, Ball was among the first people to welcome the 33-year-old pro. He couldn’t wait to have Thomas as his newest teammate. “Excited for sure,” Ball told The Observer on Monday. “I told you I don’t watch basketball like that, but when it’s on, I always remember. I saw I.T. killing it in the playoffs. I think they were playing Chicago or something. It was around when my momma was sick…