OJ Mayo felt pressure coming off the bench the last two seasons for the Memphis Grizzlies. But now he's back in the starting lineup with the Dallas Mavericks, and that suits Mayo just fine. "Memphis was more like the microwave,'' Mayo said. "You get in and heat up, or maybe you sit down, so there was a little pressure every time I stepped on the court. "But here, obviously I need to get better in a lot of areas, but scoring is something that is a gift and talent that I have. So I think I can bring that night-in and night-out.'' Mayo shook off a laceration in the palm of his right (shooting) hand to score 20 points during Monday's 123-104 victory over the Houston Rockets. But he also wants to improve his defense and become an all-around player. "(Monday) night I was horrible on the defensive end,'' Mayo said. "My challenge for this year is to challenge myself on both ends of the court.''