The Portuguese forward has already scored four goals in the knockout stage of the Champions League, having hit a hat-trick to knock out Atletico Madrid in the last round, as well as finding the back of the net in the quarter-final first leg away at Ajax.
“Cristiano has this extraordinary quality, which is that when the match arrives, he changes,” says Allegri.
“You can see it in his face. He’s in better shape physically than he was last week.
“I can say that it would have been weird if Juventus were knocked out from the Champions League with a single goal scored by Cristiano.
“He then scored three against Atletico and one at Ajax.
“Fortunately, we have Cristiano [at Juventus].”
Furthermore, the trainer went on to confirm the absence of Mario Mandzukic and Giorgio Chiellini from the return leg of the quarter-finals against Ajax.
“Mandzukic changes nothing [for Juve’s game plan], as there was already a good chance he could miss out. Now I just need to decide who plays instead,” the Italian notes.
“Tomorrow night could have [Moise] Kean from the start, [Paulo] Dybala from the start or neither of them. If Kean or Dybala start, it’s normal that either [Mattia] De Sciglio or [Joao] Cancelo will be out. If neither of them starts, then it’s possible both of them do.
“I won’t make any decisions until tomorrow morning. You need to use only healthy players, as you can’t risk wasting a substitution. Mandzukic has a knee problem he felt since the AC Milan game, he tried training today and had to stop.
“Douglas Costa stopped again with a calf issue after the first leg and is again not in the best condition, so at most he can play 15-30 minutes. He can be decisive in that period.
“If you have Kean or Dybala, it’s a different type of match. You need to move the ball forward quickly and that’s something we didn’t do very well in Amsterdam.
“Alex Sandro will play tomorrow. Leonardo Spinazzola did very well against Atletico Madrid, but he used up so much energy that he needed rest, both physically and mentally. You need to become accustomed to big games; you can’t play them every three days without slowly adapting to it.”
Ajax have impressed many in this year’s Champions League and Allegri is keen to not underestimate the Dutch side.
“I see a match in which we measure ourselves with a different team than Atletico Madrid, and tomorrow the result of the first leg doesn’t count,” says Allegri.
“It is a game in which we have to play with the same intensity with which we competed against Atletico.
“We have to respect Ajax and be accurate in the passes and if we do, we will qualify to the next round, but it will be an infinite match.
“We will need everyone including those who play, those on the bench and the fans.”