Sasuke was in Susanoo where he doesn't need to physically react or move his limbs. He controls Susanoo with his mind, or lets just say his mental reactions. On the ground in an CQC fight with Bee he needs to physically react as well as mentally and move his limbs and body in according to Bee's assault. Having the precog to see Bee is useless if his own body can't react to the speeds at which Bee's body moves Madara stated Sasuke's movements were fluid and good, but that doesn't mean they're better than Bee's.Sasuke wins high diff.
Lol at people saying KB would own him on CQC like last time. EMS Precog --> Tags Juubito. He can keep up with KB on CQC now, and thanks to KB's restrictions on bijuu chakra he gets the upper hand.
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Sasuke didn't have the bodily speeds to react to Bee then and nothing suggests he has it now so he still loses.