With an NBA investigation hanging over their collective heads, the Houston Rockets on Wednesday received a needed dose of positive news involving All-NBA guard James Harden. Harden, sidelined for seven games with a Grade 2 left hamstring strain, will be listed as questionable when the Rockets host the Minnesota Timberwolves on Thursday night at Toyota Center. Harden, who leads the league in scoring (32.3 points) and ranks third in assists (9.1), sustained the injury in the fourth quarter of a double-overtime victory over the Los Angeles Lakers on Dec. 31.