RAW Preview: 2 WrestleMania challengers for Bobby Lashley revealed, Important Title reign to end at 21 days? 

#4. Riddle defends the United States Championship against Mustafa Ali on RAW

Riddle and Ali go head-to-head.

[Matt] Riddle has a big task on RAW, not only because he has to defend the United States Championship against Mustafa Ali, but also because RETRIBUTION will be in the corner helping the latter.

The last time the two men faced off on RAW, the circumstances were entirely favorable to Ali. Riddle had already wrestled a match and was worn out. Besides, RETRIBUTION helped Ali with the distractions, giving him a non-title win over the United States Champion on RAW.

If RETRIBUTION is to get elevated to the next level on RAW, then a major win is needed. Mustafa Ali holding the United States Championship would be a powerful statement, and it would also mean the end of Riddle's title reign at just 21 days.

Naturally, most fans will hope that Riddle retains the US Title on RAW. It would be a big step down for him to lose the title less than a month before WrestleMania - especially since he is just starting to pick up some steam.