#2 Brock Lesnar challenges Drew McIntyre to a rematch
Speaking of continuing old feuds, Brock Lesnar's first match back could very well be a WWE Championship rematch against Drew McIntyre. The two main evented Night 2 of WrestleMania 36, but the match did not have the desired impact due to the lack of a live crowd.
Once fans are back, one of the first things WWE would want to do is ensure McIntyre has his moment. After getting robbed off that sweet victory pop at 'Mania, beating Lesnar in front of a live crowd would mean a lot to the current WWE Champion.
Alternatively, this could be a non-title match if WWE decided to put the WWE Championship on Randy Orton at SummerSlam. Brock Lesnar could cost McIntyre a title match down the line, resulting in an all-out war between the two behemoths.
Either way, Lesnar's first match back is likely to be the one that was intended to close out this year's WrestleMania and not the five-minute match we got instead. Brock Lesnar and Drew McIntyre could have an excellent match in front of a hot crowd and hopefully, it will happen by WrestleMania 37 at the latest.