Sure, the Dallas Mavericks and Miami Heat squared-off in the NBA Finals just five years ago, but other than Dirk Nowitski, and Dwyane Wade, these teams are vastly different. Ken Berger, of, has the story, below.

Miami Heat guard Dwyane Wade

Mavericks vs. Heat is billed as a rematch of the 2006 Finals, when the Mavs choked away their best chance at a championship. Their best chance until now, that is. Only four players between both teams remain from that Dallas debacle, so these are both very different clubs.

Especially the Heat.

Dwyane Wade now has some help. Lots of it, in fact. More than any other superstar in the post-Michael Jordan era, it can be argued. But depending on how this series unfolds, LeBron James could very well face the biggest challenge of his career, a defining moment in his impressive drive to rebuild his image and remind us what an all-time talent he is: guarding Dirk Nowitzki. Crazy, right? A 6-foot-8 small forward asked to check the best shooting 7-footer in NBA history? Well, the Heat might have to get crazy to give themselves the best chance of winning this series and fulfilling their championship mandate.