We are officially at the NBA All-Star break and teams will now get a much-needed rest. The NBA season is a little over halfway over and teams are positioning themselves for the postseason run. As we head into the final stretch of the season,

On a four-game losing skid, the Heat are at their lowest point of the season. But Erik Spoelstra is confident in turning things around.

Which teams post the biggest threat to the Celtics repeating as Eastern Conference champs? Check out our ranking of the top five.