sagan or velits
Among others, provided that Velits has returned to his normal shape and is not completely out of form, he could be say his word too to this prologue.
However, I think(or hope?) sagan will take this. But his only chance is that spartacus is not fully recovered and also i guess he will no risk much on the descent. On the contrary, Sagan is crazy(some would call it stupid, others brave) enough to go on the descent even crazier than the craziest

. As it is only 7,5 km the flat passages should not be the deal breaker, but cornering and descent will.
And if it would be start for 5 wins of Sagan, i would be glad. For me it's not boring
