Young Welshman Adam Matthews joins Sunderland on the back of four consecutive SPL title wins with Celtic. Playing the majority of games every season for the Hoops, Adams talent has been finely developed at Parkhead, since he joined as a 19-year-old rough diamond from Cardiff. Coming to Wearside with another SPL winners medal to add to his collection, Matthews should see a slight upgrade of +2 to reflect the amount of games he has played at a young age. Adam will be a player that will increase his rating due to his age and high starting rating.