World Wrestling Entertainment conducted a great wrestling match between best gimmick wrestlers Rey Mysterio 619 and WWE Cruiserweight Champion Tajiri for WWE Cruiserweight Championship at WWE No Mercy 2003. WWE started this wrestling Pay Per View with this wrestling match. Rey Mysterio lost his WWE Cruiserweight Championship to Tajiri on 25^th September 2003 at WWE Smackdown. Rey Mysterio decided to retain his Cruiserweight Title but WWE arranged a special wrestling match between these two wrestling superstars at No Mercy 2003.

Tajiri successfully defeated Jamie Noble by injuring Nidia at WWE Smackdown on 16^th October 2003. Finally, Tajiri and Rey Mysterio challenged each other for WWE Cruiserweight Title. Tajiri and Rey Mysterio performed amazing wrestling skills and entertained wrestling fans with different wrestling feats. Suddenly, one of audience disturbed this wrestling match, Tajiri successfully used this opportunity and retained his WWE Cruiserweight Championship in this wrestling Pay Per View. After this wrestling match, Chris Benoit faced A-Train.