Nieves ' Made his big league debut in 2002 for the Padres , catching Jake Peavy .
Padres 6 , Giants 4 : Wil Nieves hit a grand slam off of Jake Peavy as the Padres take three of four from the defending champs .
Wil Nieves ' Made Wil Nieves ' big league debut in 2002 for Padres Padres , Jake Peavy   Peavy .
Padres 6 , Giants 4 : Wil Nieves hit a grand slam off of Jake Peavy as the Padres take three of four from the defending champs .