Fighters that look scared or nervous?

Floyd always has a very nervous/timid look on his face coming into the ring, it was particularly noticable against DLH, but it's always there.

He stutters quite a bit when speaking too, otherwise I'd think he just has one of those faces.

(Obv Floyd isnt a cntender for fighter who looks most like he wants to **** himself but it was worth a mention)

Wlad looked scared against Peter

Haye looked scared against Wlad, he tried to smile on the way in but it didn't quite reach his eyes