Article Photos: OKC Thunder vs. Mavericks: This isn't the same Dallas team that beat OKC in 2011 7/66

Dallas' Dirk Nowitzki (41) shoots against Oklahoma City's Serge Ibaka (9) during game one of the first round in the NBA playoffs between the Oklahoma City Thunder and the Dallas Mavericks at Chesapeake Energy Arena in Oklahoma City, Saturday, April 28, 2012. Photo by Nate Billings, The Oklahoman