"He has to go to a team where he gets into a project that is already suitable for him".
Allegri steered his side past the Spaniards in the quarter-finals of last season's competition but despite that, and Barca's loss of forward Neymar to Paris Saint-Germain for a world record fee, he believes the Catalans remain tough opponents.
"If you want to hurt Dybala, then continue making such comparisons", Davids told Gazzetta dello Sport.
He said: "I know [Barcelona] well, this will be the 12th time playing against them". First, Cristiano and Messi have been playing a lot longer, it's nothing easy, their numbers are incredible, It's hard to reach that.
Dybala's objective, then, is very similar to Neymar's: to become the best player he can be away from Messi, and to try to sidle up as closely as possible to both the atomic flea and Cristiano Ronaldo.
On Saturday night against Chievo, he came on ten minutes into the second half with the scoreline on 1-0 for Juventus after a somewhat uninspired first half. These criticisms make me laugh, I mean to play well at football, what does that actually mean?
While the pair are yet to link up at club level, one side for whom they do join forces is the Argentine national team. "But so are (Gonzalo) Higuain, (Miralem) Pjanic and (Andrea) Barzagli".
A brief word about the other two Italians in the Champions League. "In their best years they had Xavi and [Andres] Iniesta at their best".