Black Cats yet to bolster squad as Keane plays transfer hardball
Chairman Niall Quinn and manager Roy Keane have spent the close season pursuing targets and attempting to negotiate deals but to date they have seen few tangible results.
Keane and his players are due to fly to the Algarve this week for friendlies at Sporting Lisbon and Vitoria de Setubal, with the start of the new season just a month away.