The 32 - year - old 's deal with Jose Mourinho 's side is due to expire at the end of the season .
The left - back believes he still has a lot to offer the reigning Europa League champions .
The 32 - year - old 's deal with Jose Mourinho 's side is due to expire at the end of the season , but the left - back believes he still has a lot to offer the reigning Europa League champions .