SOUTH Shields boss Julio Arca is hoping his players will have learned plenty from yesterday’s friendly against his former club Sunderland. The Mariners won the NPL Premier under another ex-Sunderland star in Kevin Phillips last term and are now gearing up for life in National League North under new boss Arca. Ahead of the clash against Tony Mowbray’s Black Cats, the 42-yearold Argentinian said: “I saw Sunderland a few times last season and I think that the football they played was some of the best played there for quite a long time. “Sometimes you lear...