Everton enjoyed a lot of the ball early on but Younes Kaboul had the best chance in the opening 25 minutes with a stunning effort. The former Tottenham and Portsmouth defender raced down the left, turning inside and his arrowing shot across goal went just past the post, much to the relief of Robles.After a promising start, the Merseysiders failed to regain control of the game.As the Stadium of Light crowd’s anxiety filtered onto the pitch, Jermain Defoe was fouled on the edge of the box on 38 minutes. Van Aanholt stepped up to take the free-kick and Robles was wrong-footed as he prepared to dive across goal as the Dutchman netted his fourth of the campaign.Kone soon doubled their lead to edge Allardyce’s men closer to safety, a timely moment to net his first Sunderland goal since arriving from Ligue 1.His goal came after Defoe was denied by point-blank range, Robles tipping his header over the bar. As the ball was cleared from the resulting corner, Yann M’Vila headed the ball back into the box and Kone caught the volley perfectly, sending it into the roof of the net – followed by supporters’ shouts of ‘are you watching Newcastle?’Early in the second half, Defoe came even closer to netting his 19th goal of the campaign in all competitions. The 33-year-old, who has been tipped for an England call-up ahead of Euro 2016, was through on goal and he skilfully lobbed Robles. As the ball headed for goal, John Stones raced to clear the ball off the line.The resulting corner was whipped in by Wahbi Khazri and Robles failed to punch clear. The ball fell to Kone who could not miss from close range on 55 minutes.As the Wearside crowd roared in delight, they nearly had a fourth, Robles brilliantly denying Defoe once again – without the former Wigan goalkeeper, Everton could have conceded even more. 2 2 The Sunderland victory means relegation for Newcastle and Norwich Lamine Kone opened his Sunderland account as the Black Cats retained their Premier League status for next season, beating a poor Everton side 3-0 at the Stadium of Light.The three points means Sam Allardyce’s men will go into the final game of the campaign knowing they will definitely avoid the drop, confirming relegation for local rivals Newcastle and Alex Neil’s Norwich, along with already-relegated Aston Villa.The Black Cats scored twice in four minutes to lift the atmosphere on Wearside before half-time. Patrick van Aanholt put the hosts ahead with a low 20-yard free-kick before French defender Kone, a January signing from Lorient, sent a thunderous volley past Robles on 42 minutes.It was three just ten minutes into the second half when Robles’ poor goalkeeping meant the ball would fall to Kone who converted into an empty net.It completes an impressive job for Allardyce, who was appointed in October to replace Dick Advocaat, tasked with avoiding the dreaded drop.Everton, meanwhile, have now won just once in their last ten league outings and Toffees fans are growing increasingly frustrated with Roberto Martinez – only 1,000 were in attendance at the Stadium of Light.