Russell Westbrook scored 41 points and Robert Covington added 14 as the Houston Rockets' small-ball lineup proved effective again in a 121-111 road victory Thursday over the Los Angeles Lakers. Covington made a pair of big 3-pointers in the last three minutes while making his Rockets debut after he was acquired in a four-team trade from the Minnesota Timberwolves on Tuesday. Covington made a 3-pointer with 2:40 remaining for a 115-111 lead and added another with 1:27 remaining for a 120-111 advantage.