#4 He didn’t want to be distasteful on Reigns
Remember that promo where Dean Ambrose stated that karma comes back to bite everyone and suggested that Roman Reigns’ deeds was the reason why he has to answer to God, indirectly insinuating that his leukemia came back because of those 'deeds'?
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Apparently, he didn’t want to do that. In fact, he found it highly distasteful because Reigns is a friend of his in real life and was suffering at the time from a deadly disease.
However, Vince McMahon persuaded him to do it because it would garner a lot of heat from the fans. But that was not all – McMahon actually wanted him to make another comment on Reigns’ leukemia in another promo later but this time, he couldn’t convince him because the second one was so much worse that he didn’t even say it on air during the podcast.
The WWE has never refrained from holding back on promos that would help garner heat from the WWE universe. In order to establish oneself as a heel, the work had to be put in and Ambrose was at cross roads on whether he should deliver the promo. It would cost him more than what he bargained for and it left a bitter taste in the mouth for all parties involved.