If the Philadelphia 76ers are going to advance past the New York Knicks in the Eastern Conference Semifinals, a lot will hinge on 76ers star center Joel Embiid. Philadelphia always depends on Embiid when he's on the court, given that he's one of the league's most dominant big men in the game. However, there isn't even certainty that he'll be on the court when Game 1 of this series tips off on Monday night, as the 32-year-old is dealing with a right hip contusion. Philadelphia 76ers center Joel Embiid (21) | David Butler II-Imagn Images The good news is that Embiid is currently listed as probable on Philadelphia's injury report, suggesting that he'll most likely be available to play against Knicks star center Karl-Anthony Towns and the rest of the Knicks' roster. Embiid's NBA journey has been a rollercoaster.…