By David RothReutersWithout looking, Udonis Haslem checked to make sure Tyler Hansbrough’s face was still there during the chippy Game 5 between Miami and Indiana.Allen Iverson got a warm ovation from Philadelphia fans before Game 6 of the Eastern Conference semifinals between the 76ers and Celtics, and then watched as the Sixers showed Iversonian grit in forcing a Game 7. But while the hard-nosed, closely-played Sixers-Celtics series has something of a throwback vibe to it, it has nothing on the tense, chippy, exceedingly heated series between the Miami Heat and Indiana Pacers. If this year’s overachieving Sixers have recalled the happy Dr. J years of the 1970s and early 1980s, the Heat-Pacers series feels like something out of the sharp-elbowed