The Premier League runners-up have received the green light to complete a €23 million move for the striker after the Spanish side confirmed the signing of Carlos Bacca from Club Brugge.
|9/4||Manchester City are 9/4 with bet365 to win the Premier League
"Right now, I'm at Seville and like it very much," Negredo told reporters.
"If I stay that'll be fine but if I leave then it will be because it benefits both the club and myself.
"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."
City have already completed the €17m signing of Negredo's former Sevilla team-mate Jesus Navas this summer, as well as Brazil midfielder Paulinho.