Tottenham are interested in taking Kaboul back for £10m, less the £2m they are owed and £1.5m as the sell-on value, so a net £6.5m for Pompey (or their creditors)
http://www.dailymail.co.uk/sport/football/article-1245137/Tottenham-Manchester-City-Sunderland-10m-race-Portsmouth-defender-Younes-Kaboul.html