Article Photos: OKC Thunder: Sweeping the champs is nice, but tougher challenges are ahead 3/31

Oklahoma City's James Harden (13) goes up for a dunk beside Dallas' Ian Mahinmi (28) during Game 4 of the first round in the NBA playoffs between the Oklahoma City Thunder and the Dallas Mavericks at American Airlines Center in Dallas, Saturday, May 5, 2012. Oklahoma City won 103-97. Photo by Bryan Terry, The Oklahoman