Mark J. Terrill, AP
San Antonio Spurs forward Tim Duncan, left, shoots as Los Angeles Lakers center Dwight Howard defends during the first half of their NBA basketball game, Sunday, April 14, 2013, in Los Angeles. (AP Photo/Mark J. Terrill)

With the regular season over the playoff brackets set, here's a look at each NBA postseason matchup, including what could be key to the outcome of each series.

Click here to see the NBA playoffs series-by-series breakdown and analysis.