Andrew Bynum had a huge smile on his face after he grabbed a rebound of his own miss and got fouled on an attempted putback. Not long after making both those free throws that put the Los Angeles Lakers ahead to stay, Bynum was running after teammate Derek Fisher to give him a big hug following a 3-pointer. Bynum had 19 points and 14 rebounds, including several big plays in the final 5 1/2 minutes, as the Lakers hit the halfway point of their season with a 96-91 victory over the defending NBA champion Dallas Mavericks on Wednesday night.