There is a chair in front of Michael Porter Jr.’s locker where the artwork rests. It was a gift from teammates Kentavious Caldwell-Pope and Jamal Murray, a reminder that there is no paved road back to an NBA title. It reads simply: “I am going to do today what others won’t, so that tomorrow I can do what others can’t.” Porter looked back at the picture Saturday night with comfort. “I have to go hang that up at the house,” Porter said. Porter, 25, had an awful week off the court.