More On Brock Lesnar's WWE Return, Why He Didn't Appear At WrestleMania 28

Source: PWInsider

Brock Lesnar signed his one-year deal with WWE before he arrived in Miami during WrestleMania 28 weekend. The decision was made over the weekend to keep Lesnar off WrestleMania and have him return on RAW the next night.

The main reason for keeping him off WrestleMania was to not cloud the end of the story between John Cena vs. The Rock because the idea is for Lesnar to be kicking off a "new chapter."