WWE officially announced that Brock Lesnar will defend the Universal Championship against Braun Strowman at No Mercy on September 24 in Los Angeles, CA.
IT'S ON! A BEAST will go one-on-one with a MONSTER when @BrockLesnar defends his #UniversalTitle against @BraunStrowman at #WWENoMercy! #RAW pic.twitter.com/FlmastOnGE
— WWE (@WWE) August 22, 2017
After an opening segment on Raw where Strowman came out and manhandled Lesnar, the match was booked for the next PPV.