#2. Cesaro accidentally costs Daniel Bryan the match
It's hard not to see Cesaro getting involved in the match between Roman Reigns and Daniel Bryan. Since he's directly involved in the storyline, he could be at ringside.
While this may not be the best approach to setting up Cesaro as a babyface challenger, a messy finish that indirectly results in Cesaro costing Bryan and helping Reigns win the match would be an interesting way to build a future rivalry.
There are ways to go about it without making Cesaro look bad. Having no physical audience present in the arena might help in this case.
#1. Roman Reigns destroys Daniel Bryan and writes him off WWE television
The finish to WrestleMania 37 was an incredibly dominant moment for Roman Reigns. The Tribal Chief made sure that Edge and Daniel Bryan were pulverized by steel chairs before he proceeded to pin both men.
This sequence of events wrote Edge off WWE SmackDown for a while. Given Daniel Bryan's contract status, it looks like he will be written off television as well.
The reality is that the upcoming episode of SmackDown could feature Bryan's final match as a full-time WWE superstar. Roman Reigns might brutalize him during and after the match to get as much heat as possible.
As a result, Cesaro should be the heroic babyface challenger who will step up to The Tribal Chief in the near future.