Hahnemann, 35, signed a new deal a year ago taking him to the end of this season, with a one-year option if he is still a regular.
Hammond said: "Marcus and I agreed a new deal less than a year ago, which covers last season and the whole of the current campaign. That contract also contains an automatic one-year extension up to the summer of 2009 if Marcus continues to perform regularly in the Premier League, and this is a target he is well towards."
Copyright (c) PA Sport 2007, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms