well it is not like they made a statement this is the only reason, but it is so obvious this Kiossev is a lot weaker even for our low league standards, there are some nice much younger guys that could have been offered from CSKA for not so much money. I am sure most of them would take the chance to show in CL at least. And beeing the son of his father I guess certan number of contatcs play a role for him beeing emplyoed in CSKA...
We discussed in Bulgarian league thread for another similar case - Zhany Zheliazkov, even thought at least Zhany seems unwilling to play volleyball while Kiossev just lack a talent...
But you can't deny that he compensates with body mass
May be, but Kiossev can receive, and that is so rare in Bulgaria
Of cousre, he can - receiving doesn't demand jumping unlike spiking, blocking, serving...