The AP reports: Yao Ming had 21 points and 10 rebounds, Artest added 16 in his Houston debut, and the Rockets overcame poor shooting to beat the Memphis Grizzlies 82-71 on Wednesday night. Luis Scola had 12 points and 13 rebounds for the Rockets, who were 28-for-76 (36.8 percent) from the field. They also went 5-for-16 from 3-point range and were outrebounded 49-44… Rudy Gay scored 20 and Darrell Arthur had 11 points and 15 rebounds for the Grizzlies, who’ve lost all eight season openers since moving to Memphis in 2001… Tracy McGrady, wearing a brace on his left shoulder and a wrap below his left knee, had 16 points and five assists, but went 7-for-18 from the field.