It's very difficult to get out of American Airlines Center without being blown out by Mavs. I don't even say a word about win. Mavs are the one of best three teams in the league(along Spurs and Suns), IMO.
We are 0-5 against them in overall and we'll have to wait until at least next season to grab our first ever win against Mavs.
At our first meeting this season, they had beaten us 93-85 despite being held 39% FG pct. I'm pessimistic about our chances to upset them. But I don't forget that we're the best "upsetting" team in the NBA.
Furthermore, they don't have an injured player as far as I remember. Only Stackhouse was day-to-day in their last match, but he'll probably play. Do you know whether May or Knight will play tonight?