Can Beterbiev crack at cruiser?

Here's his HW record in the amateurs albeit it could possibly be missing a few fights. As you can see he stopped a lot of his opponents even though he wasn't a natural HW and he was giving away a lot of weight. I'm sure I remember reading somewhere him saying he only weighed 84kg when he campaigned up at HW in the amateurs.

2012 – Chemistry Cup (Halle, GER) 1st place – 91KG Won against Wang Xuanxuan (CHN) AB 3rd round in the final; Won against Julio Castillo (ECU) 14:5 in the semi-final; Won against Elber Passos (BRA) RSC 3rd round in the quarter-final; Won against Johann Witt (GER) 14:9 in the first preliminary round
2012 – International Team Tournament (Almaty, KAZ) 1st place – 91KG Won against Aleksey Sevostyanov (KAZ) AB 2nd round; Won against Suliman Abdourachidov (FRA) WO; Won against Manpreet Singh (IND) RSC 3rd round
2011 – AIBA World Championships (Baku, AZE) 5th place – 91KG Lost to Oleksandr Usyk (UKR) 17:13 in the quarter-final; Won against Djakhon Kurbanov (TJK) AB 2nd round in the second preliminary round; Won against Mario Heredia (MEX) AB 1st round in the first preliminary round
2011 – Umakhanov Memorial Tournament (Makhachkala, RUS) 1st place – 91KG Won against Jose Angel Larduet (CUB) WO in the final; Won against Abdulkadir Abdullayev (AZE) 11:3 in the semi-final; Won against Reza Moradkhani (IRN) RSCI 1st round in the quarter-final
2011 – Russian National Championships 1st place – 91KG Won against Abdulkhamid Nurmagomedov (RUS) 15:4 in the final; Won against Arbi Madayev (RUS) WO in the semi-final; Won against Spartak Bakhtiyarov (RUS) AB 2nd round in the quarter-final
2011 – Great Silk Way Tournament (Baku, AZE) 1st place – 91KG Won against Teymur Mammadov (AZE) WO in the final; Won against Vasiliy Levit (KAZ) 3:0 in the semi-final; Won against Sarkhan Jabbarov (AZE) KO 1st round in the quarter-final
2010 – Russian National Championships 2nd place – 91KG Lost to Pavel Nikitayev (RUS) 12:3 in the final; Won against Abdulkhamid Nurmagomedov (RUS) AB 2nd round in the semifinal; Won against Pavel Shulskiy (RUS) WO in the quarterfinal

Q: Oleksandr, you won most everything as an amateur, including the gold at the 2012 Olympics. Who would you say gave you your hardest fight as an amateur?

Oleksandr Usyk: “Well, all those fights, they all took place within the last couple of years or so, so it’s hard to say. Maybe, if I was pushed to say, it was Artur Beterbiev of Russia who gave me my roughest fight. He is very aggressive and he does hit very hard.