#4. Dean Ambrose
This one is surprising as well as understandable. It's surprising because you would think that WWE would have a farewell match for Dean Ambrose given that he's leaving the company a few days later.
However, they probably feel that there won't be much consequence of having him on the card, and he may be stuck in the Andre The Giant Memorial Battle Royal. However, it's still a shame that there's no real match for him, because he put in a lot of years for the company and was the iron man of WWE at one point of time.
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He certainly deserves a farewell, even if it means losing at the grandest stage of them all. While he doesn't have the best record on the show of shows, he still deserves a good way to leave. The best match for him would have been a friendly competition match against Roman Reigns, similar to Rey Mysterio-Eddie Guerrero at WrestleMania 21.