#1. To put an end to Shane McMahon and Roman Reigns rivalry.
Without a blink of an eye, one could say that one of the worst rivalries of this year has been between Shane McMahon and Roman Reigns. Both of them started feuding around after the Superstar Shakeup when Reigns moved to SmackDown LIVE and punched Vince McMahon.
Since then, both Reigns and Shane (and Drew McIntyre) have been in the spotlight for both RAW and SmackDown LIVE. They have been repeating the same segments week in and week out, exhausting the fans from entertainment. WWE will be looking forward to ending this rivalry once and for all.
During the tag team match at Extreme Rules, The Undertaker may attack Roman Reigns (as a retaliation for his defeat at WrestleMania 33) costing his team the win. Such a step would ensure two things. One, Roman Reigns will have an opponent for SummerSlam and two, it would help to boost Shane McMahon's ego - which could help Shane's feud for SummerSlam.