Sunderland, Feb 4 (DPA) Portsmouth completed the signing of Portuguese defender Ricardo Rocha on a free transfer.

The 31-year-old former Tottenham Hotspur player has joined until the end of the season, having left Belgian champions Standard Liege.

'It's very good for me to be back,' he told Portsmouth's website Wednesday.

'It will be good to be able to show everybody what I can do, and I want to prove it to myself and to the people of Portsmouth.

'But the most important thing is to help get Portsmouth away from the bottom.

'I know from our position in the league that we are struggling a little bit now, but I know that everybody is doing their best to get out of this situation and I'm here to help the team to achieve that goal.'