However, all the heat diminished as of the October 22, 2018 episode of ''Raw'', when Reigns announced that he was re-diagnosed with [[leukemia]] after 11 years and would be taking a hiatus to treat it. As a result, he relinquished the Universal Championship, ending his reign of 64 days. Reigns initially received a mixed reaction upon entering the arena, but was welcomed with a positive reception after his announcement of leukemia was made.<ref name="Raw10222018">{{cite web|last1=Powell|first1=Jason|title=10/22 Powell's WWE Raw Live TV Review: Roman Reigns announces he has leukemia, forfeits the WWE Universal Championship, Drew McIntyre and Dolph Ziggler vs. Seth Rollins and Dean Ambrose for the Raw Tag Titles, Ronda Rousey and Nikki Bella contract signing for WWE Evolution, Triple H and Shawn Michaels appear|url=https://prowrestling.net/site/2018/10/22/10-22-powells-wwe-raw-live-tv-review-drew-mcintyre-and-dolph-ziggler-vs-seth-rollins-and-dean-ambrose-for-the-raw-tag-titles-ronda-rousey-and-nikki-bella-contract-signing-for-wwe-evolution/|work=Pro Wreslting Dot Net|accessdate=October 22, 2018}}</ref>
=== Baron Corbin ===
[[Baron Corbin]], while always portraying a heel character going back to his [[NXT (WWE brand)|NXT]] days, began to experience notable go-away heat when he took the role of on-screen general manager of ''Raw'' away from [[Kurt Angle]] during the latter half of 2018. During this period, Corbin would receive a chorus of boos whenever he was either walking down to the ring, seen on the titantron screen, or even when his name was mentioned. This particular case of heat even made an impact on the television ratings, with Dave Meltzer of the Wrestling Observer taking notice of the decline in Raw TV ratings through October and November of the same year. This antagonism from fans would continue far after Corbin lost his managerial position in December of 2018. When Angle announced that his retirement match at [[WrestleMania 35]] would be against none other Corbin himself, the live crowd and the internet groaned about how the match-up took away what could be a memorable opponent to send off the Hall of Famer, such as a match against John Cena (since Cena's WWE television debut was against Angle back in 2002). On the April 1, 2019 episode of ''Raw'', Corbin mentioned the internet comments during a promo, mocking the fan's hopes of a new opponent.
The television ratings took another noticeable plunge on the April 22, 2019 episode of ''Raw'' according to the [[Wrestling Observer Newsletter]]. The 2nd and 3rd hours of ''Raw'' saw a massive decline in viewership, which Meltzer and fellow wrestler and journalist [[Bryan Alvarez]] claims were due to Corbin winning a second-hour match that would send him to the main event of the show. These ''Raw'' TV ratings are now the lowest viewership in WWE history when not competing head-to-head with American football.