Anyway, Man United is stronger if we consider the value of their squads.
I think the market value between them should be swapped, there's no way to compare Onana and Bayindir with Simon, also Hojlund, Garnacho, and Zirkzee with Williams brothers.
Later, I will favor Bilbao because of the quality of their game even though Manchester United this season has performed beyond expectations during the UEFA Europa League with a new format.
The odds for Athletic Bilbao is quite high, it's @2.10, looks like people think Manchester United can still able to fight against Manchester United.
I guess the result would be 3-1 favor on Athletic Bilbao.