Pizarro’s current contract at Bremen expires in June 2013, but it includes a clause that could see him leave on a free transfer at the end of the season.
He told the club’s official website: “All I am able to confess is that I like the great family atmosphere that is around the club.
“The people of Bremen love their players, this is a special relationship. I am definitely not moving back to Peru, that is a certainty.”