At Dortmund he was extremely skillful and could weave through tight spaces with ease. Aside from that he was a really high quality passer and link up player which resulted in the enormous assists.
He seems to have completely lost what made him an excellent player with the lack of physicality and intensity marring his all round game. For example, I never see him hold off challenges? As a wide player, to take players on means to get a yard of space and then ward off pressure though skill, upper body strength, low centre of gravity etc But Sancho, even when he has good games / cameos, just wants to avoid that at all costs.
Still hope that a few good games that revitalise him to becoming the old version of himself again. We’ve seen some good cameos but needs to show more.