What does achieving a Grand Slam mean across different sports?

#2 Professional Wrestling

Shawn Michaels won the first grand slam of professional wrestling.

A wrestler is said to have won the grand slam of Professional Wrestling if he has won four specific championships in his career. The titles include three single and one tag team event. Three individual events should be primary, secondary and tertiary.

Shawn Michaels originally used the word 'Grand Slam' for himself after winning the European Championship. He had also won WWF Championship, Intercontinental Championship, and the Tag Team Championship.

As of now, 17 wrestlers including the likes of Triple H, Kane and Kurt Angle have won the WWE Grand Slam. Roman Reigns is the latest addition to the list having won the coveted title on 20 November 2017.