Joe Murphy/NBAE/Getty ImagesMemphis center Marc Gasol: "We haven't done anything. We're 2-2." Let's not call what the Los Angeles Clippers and Memphis Grizzlies share a rivalry, because that's a stamp reserved for rare use. But for the second consecutive season, the Clippers and Grizzlies are delivering us a serious piece of first-round entertainment that plays like something we usually see in late May. These games have been fueled by a familiar but unique grade of intensity, and with Game 5 set for Staples Center on Tuesday night, the heat in this series will be dialed up to maximum capacity. Both last year and now, Clips-Griz has been the rare first-round series where an early bounce would be cataclysmic for both teams. Each team played championship-caliber basketball for sustained stretches during the regular season, and both have produced a single performance (Clippers Game 1, Grizzlies Game 4) as good as anything else on display in the first rou...