Although Brock Lesnar and Edge both competed on Smackdown in 2002, they never got to have a headlining feud. Then at the start of 2003, Edge went out of action with a broken neck. When he returned a year later, Lesnar had quit and retired from pro wrestling. Fast forward to 2012. Lesnar is back, but now Edge has had to retire in 2011 due to his ongoing neck problems. What would've been two of the biggest stars of this century wrestling is now an impossibility. Had both been on the roster at the same time in their peaks, they'd have definitely feuded for the World or WWE title. Although, you'd have to say it would've been uncomfortable viewing to see Lesnar suplexing Edge on his neck.