NEW YORK, NY - AUGUST 23:  Brock Lesnar and The Undertaker battle it out at the WWE SummerSlam 2015 at Barclays Center of Brooklyn on August 23, 2015 in New York City.  (Photo by JP Yim/Getty Images)

NEW YORK, NY - AUGUST 23: Brock Lesnar and The Undertaker battle it out at the WWE SummerSlam 2015 at Barclays Center of Brooklyn on August 23, 2015 in New York City. (Photo by JP Yim/Getty Images)

JP Yim/Getty Images

Sunday night at WWE Fastlane, Roman Reigns earned the right to face WWE World Heavyweight Champion Triple H in the main event of WrestleMania after defeating Dean Ambrose and Brock Lesnar in a No. 1 contender's triple threat match.

Less than 24 hours, and one parking lot brawl later, the other two combatants in Fastlane's main event have their own WrestleMania match...against each other.

Prior to Monday Night Raw, WWE tweeted out videos of Brock Lesnar attacking Dean Ambrose in the parking garage of Joe Louis Arena in Detroit, Michigan.

The attack prompted a challenge from Dean Ambrose - himself vs. Lesnar in a No Holds Barred Street Fight at WrestleMania.

Lesnar accepted.

However, the biggest shock of the night came in the form of Shane McMahon, son of WWE chairman Vince McMahon, who made his first appearance in a WWE ring since his resignation from the company in 2009.

He returned to interrupt the ceremony of the inaugural Vincent J. McMahon Legacy of Excellence Award, which was being awarded to his sister, Stephanie McMahon.

Revealing he wanted control of Monday Night Raw, his father granted his request on one condition: defeating The Undertaker in a Hell in a Cell match at WrestleMania.

This won't be Shane McMahon's first rodeo when it comes to participating in dangerous matches in Dallas.

In 2003, he (unsuccessfully) took on Kane, The Undertaker's brother, in an Ambulance Match at Survivor Series.

Also from Raw: The Godfather was announced as another inductee into the 2016 Hall of Fame class.

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