Golden State Warriors guard Klay Thompson is feeling better and on track to return for the NBA Finals next week after taking a knee to his head from Trevor Ariza that caused ''concussion-like symptoms.'' That's according to Thompson's father, former NBA player Mychal Thompson. Mychal Thompson said his son vomited a couple of times and he had to drive him home after the Warriors eliminated the Houston Rockets in Game 5 of the Western Conference finals on Wednesday night. Asked to describe the difference in his son's status a day later, Mychal Thompson said ''Antarctica to the jungles of Brazil.'' He said his son should be cleared to play at some point before Game 1 against Cleveland next Thursday night.