Integra
I can see Fedor losing in his next few fights. Depends on the quality of opposition I guess.
Rogers is well inside the top 10 heavyweights in my opinion. So Fedor was definitely facing tough opposition.
Looking at UFC heavyweights who will beat or be very challenging for Fedor
Cain Velasquez - Excellent Cardio, Relentless strong wrestler and solid chin
Nogeuira - Best all round fighter in the UFC, good hands and a top ground game plus an iron jaw
Brock Lesnar - Top wrestling and best ground and pound around. Very suspect chin, he looked stunned and hurt by a Mir 1-2 which had no real power on.
Carwin cant be included because he has only beaten Gonzaga and was badly hurt after 25seconds, he would be picked apart by Fedor.
Mir would get beaten bad by Fedor, his strikes arent great and can be taken down easily.
Couture has no chance, would be a copy of the Nog fight but Fedor would finish it.
Oveerem is best heavyweight striker in MMA IMO, think he has a decent chance to give Fedor a tough fight.