#2) Multi-Man matches involving Reigns and Lesnar in WWE
While this list is solely focused on the singles matches between Roman Reigns and Brock Lesnar in WWE, it'd be wrong not to mention the few multi-man contests they've competed in. Removing Royal Rumble matches, Roman Reigns and Brock Lesnar have been involved in two main event multi-man matches.
Reigns vs. Ambrose vs. Lesnar at WWE Fastlane 2016
They say three's a crowd, but you probably won't complain when the third is your best friend helping fight off The Beast of WWE. The former Shield brothers worked together in their triple threat contest against Brock Lesnar at Fastlane.
The winner of the match faced off against Triple H for the WWE Championship at WrestleMania 32. Reigns lost the title at the 2016 Royal Rumble when Triple H entered the rumble and won.
The match allowed Roman Reigns to win without having to pin Brock Lesnar. Lesnar didn't have to be involved in the finish at all. Reigns would go on to win the match by pinning Dean Ambrose, then face-off against the COO of WWE in the main event of WrestleMania.
Roman Reigns vs. Brock Lesnar vs. Samoa Joe vs. Braun Strowman at WWE SummerSlam 2017
In one of the biggest matches for the WWE Universal Championship (both figuratively and literally), Universal Champion Brock Lesnar was forced to defend his title against three very worthy challengers in Samoa Joe, Roman Reigns, and Braun Strowman.
The match was highly praised as an action-packed bout that kept fans guessing. All four men had legitimate claims to the championship, and all would easily be seen as credible champions moving forward.
Despite valiant efforts from all challengers, Brock Lesner would win the bout by pinning Reigns following his signature F-5.