Negredo has been linked with a move elsewhere this summer, especially after Sevilla brought in attacking reinforcements earlier this week in the shape of Colombia forward Carlos Bacca from Club Brugge.
Manchester City are reportedly interested in landing Negredo, and he admits he is facing a dilemma in terms of whether he should stay or go.
He enjoys life at Sevilla but wants to play for a successful club and is prepared to leave if an agreement can be reached that suits everyone.
"Right now I'm at Sevilla and I like it very much. If I stay then that will be fine, but if I leave then it will be because it benefits both the club and myself," he said.
"I'm happy on a personal level but collectively we have not achieved the goals we wanted.
"Now perhaps I am at a decisive moment for my future."