Lesnar didn't show up to rehearsal for the Rumble where they go over the high spots of the match, even though he was involved in most of them.
Lesnar ended up calling most of the Rumble in the ring. The only thing he didn't know was how he was eliminated. Drew McIntrye called the ending to him as if he was trash talking but in reality he was telling Brock how he was going out. If you go back and watch it, Drew yells the finish right at him.