First of all, Kuuybi got seal up by Yamato. Unless of course, it was unseal, the Kuuybi can't be use. Sakura, got injure on her hand by the Kuuybi and not quietly heal yet (she useless anyway). Sai simply has been over power by Sasuke (look like Sai lose a lot of charka - we can see it by the expression of his face). Therefore, Naruto team seem to defense on Yamato. There are few way for Yamato to fight. One, unseal the Kuuybi. Two, one on one fight, even though i don't see him stand much of the change. Three, team fight, This one has higher probability of winning, and also has highest probability of happenning. Anyway, i hope this fight be much better than the other that we had seen so far.