Sorry but disagree.
Doherty was very bad too, but it doesn't directly make Davinson to be non-existent when he's required to do his own job. Davies offered nothing going forward, but was not shaky as all dealing with his own men, picking the right runners to mark. Tanganga was not flawless, but he dealt with any danger coming to his area just fine.
Sanchez, however, was at the midst of LASK attack all game, and he couldn't deal with his. Not just the final goal. Sanchez couldn't read the situation all game. LASK targeted the area Sanchez watched over, either in front, or the channel between him and Doherty. Always one step behind them. The second goal, he was not aware of the movement of the scorer at all. He neither mark, or cutting the passing angle. We can blame Joe Hart for shit goalkeeping, but these kind of chance doesn't occur often at top level since it's basic positioning.