MS Itachi admitted to not being able to fight Jiraya, so I don't think MS Sasuke could. However, EMS Sasuke is of unknown power atm, so I wouldn't be able to tell. Also, remember that Jiraya had already studied the Amaterasu, so he might already have had a strategy in how to approach it; and, Tsukiyomi can be counted by not looking into the person's eyes like Guy said (Jiraya has the experience to fight like that). Plus, as Bee said, if he has a partner, he won't fall into genjutsu, which he has the frogs. The only thing he'd have going for him would be Susano'o. But, how long could he keep that up against Jiraya. Just think, summoning the Eso****us of the giant frog.
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