As far as Austin Rivers is concerned, he proved himself right with his career-high 41-point performance in the Houston Rockets’ 129-112 win Sunday over the Sacramento Kings. “You continue to tell yourself, ‘You can do this, you can do this, you can do this, you can do this,’ for nights like this,” said Rivers, who had the most points by a Rockets reserve since Sleepy Floyd in 1991. “I believe I’m a premier scorer.