#2 The steel
Brock Lesnar may be one of the most dominant Superstars in WWE history but even he's made of flesh and bone and not impervious to shots from a steel chair.
Brock Lesnar backing away from Seth Rollins on RAW may just have been for the simple reason of self-preservation. Who wants to get thumped by a steel chair when you can avoid it?
#1 Fear
Brock Lesnar may be the biggest bully on RAW but even he knows what Seth Rollins is capable of. I mentioned earlier that Brock Lesnar had hit Rollins with 6 F5's the last time they met. However, what I forgot to mention was the unnerved look on The Beast's face as Rollins kept asking for more.
Seeing Rollins take out Drew McIntyre with the steel chair, it wouldn't be surprising if even The Beast felt a tinge of fear as Rollins towards the ring.