Sunderland lost 2-1 to Gateshead in their second pre-season match of Regis Le Bris’ tenure. Sunderland boss Regis Le Bris oversaw two separate friendlies on Saturday, with two different squads put to the test against non-league sides South Shields and Gateshead. The first of the friendlies saw Le Bris’ side 5-0 up at half time, courtesy of a star performance from stand-in captain Dan Neil, who played brilliantly alongside Chris Rigg in the centre of the park. Striker Eliezer Mayenda also showed signs of improvement under the French manager, after he scored from the penalty spot. Portuguese att…