Derrick Rose, the reigning MVP, only played in 39 of 66 games this season due to a slew of injuries, ranging from his toe and his ankle to his groin and his back.  In those 39 games, he averaged nearly 22 points, eight assists and three rebounds per game, good for a PER just above 23, according to ESPN’s John Hollinger. Not so coincidentally, the Bulls went 32-7 in those games, looking like the favorite to win this year’s NBA championship in the process.  Without Rose, the Bulls still managed a more-than-respectable 18-9 record, but they understandably looked more mortal while doing so. The team depends on Rose’s ability to create so much (for himself and teammates) that, in his absence, the team often goes through long scoring droughts, bogging down in the halfcourt offense.  If Rose is 100 percent healthy—which is how Sixers coach Doug Collins views it going into the matchup—the Sixers realistically don’t stand a chance of winning this series. Yes, they beat a full-strength Bulls team back on Feb. 1, but over a seven-game series, a healthy Derrick Rose will wear them down on both ends of the court.  If Rose isn’t healthy, however, the Sixers’ upset chances suddenly don’t seem so preposterous. This, without question, will be the largest determining factor of how quickly this series ends and which team will be moving on.