Most professional wrestlers go through style and gimmick changes to shake things up. Joey Mercury's look ended up changing not out of a desire to start fresh, but rather due to a rather nasty accident.
Mercury began his career looking pretty badass. He sported long, dark, braided hair down to his shoulders, and maintained an incredible physique. Unfortunately, he suffered what he called a "career-ending injury" during a bout in 2006, when a ladder crashed down on his face, shattering his nose. He required plastic surgery and was out of action for months, due to the severity of the break. He returned to the ring a short while later wearing a protective face mask, but was eventually let out of his WWE contract, and retired. These days, he sports a suit and tie due to his gig as a producer and announcer for WWE, though he does return to the ring on occasion as a (easily tossed-around) member of the heel J&J Security.