Not many. Only a concussion really...
As of June 2014, Sergio Romero plays for AS Monaco, a club in France.
Sergio Abreu goes by Sergio Abreu.
Sergio Corbucci went by The other Sergio.
Sergio Kato's birth name is Sergio Luiz Pereira.
Sergio DeFassio's birth name is Sergio Desfassiaux.
Sergio Manzo's birth name is Sergio Hernandez.
Sergio Salerno's birth name is Sergio Farina.
Sergio Blass's birth name is Sergio Gonzlez.
Sergio Gobbi's birth name is Enrich, Sergio.
Sergio Llull's birth name is Sergio Llull Meli.
Sergio Sendel's birth name is Sergio Santaella Sendel.
Sergio Rivero's birth name is Sergio Rivero Hernndez.