To men when you say over night sensations, it means someone whom was not on the scene and was obscure coming into the fight.

Recent:
Linares over Larios
Mijares over Arce
Baldomir over Zab
Kiko over Dunee
Seguei over Lamon
Karmazin over Ouma
Katsidis over Earl
Agbeko over Perez

Past:
Canto over Oguma
Harada over Jofre
Mayorga over Lewis & Forrest back to back
Hatton over Tszyu
Galaxy over Espinal
Ingerman over Patterson
Carl over Ralf
Lopez over Ohashi