Negredo twice netted equalisers as Sevilla battled back to beat Mallorca 3-2 in Monday night's La Liga clash at the Ramon Sanchez Pizjuan.
Those goals took Negredo's tally for the season to six in eight La Liga matches and the 27-year-old hopes his form has not gone unnoticed by Del Bosque.
Negredo was part of Spain's successful Euro 2012 squad but has not been called up by Del Bosque for the last five internationals.
Negredo told reporters: "This is the only way to get into the national squad, scoring goals and working well. I'll be hoping for a call from Del Bosque, and if not, I'll continue working hard."