Abdoulaye Doucoure scored the most important goal of his career and possibly Everton's history to save the side from relegation with a 1-0 win over Bournemouth.His powerful 20-yard strike, a bolt from the blue, was enough to extend the club's top-flight stay to a 70th successive season but for long periods that proud record appeared in doubt.But Doucoure's 10th goal for the club capped a remarkable turnaround in four months for the Mali international who was training on his own in January after a fall-out with former manager Frank Lampard.Five days after having his contract extended by 12 months - and with his side just over half-an-hour from heading into the Sky Bet Championship - he delivered when it mattered most and in a way the club can never adequately repay him for.But it still required a clearance from Conor Coady under his own crossbar and a good save deep into 10 minutes of added time from Jordan Pickford to keep them safe after it initially looked like the Cherries' second-choice goalkeeper Mark Travers would play a key role in sending the Toffees down.The home side had started the most significant day in their 145-year history two points outside the drop zone but with Leicester winning at home to West Ham they were heading for only their third relegation and first since 1951.Then, their top-flight exile lasted three years and the nightmare scenario was that there had been little to suggest over the last couple of seasons another absence would have been any shorter.Everton had been in the last-day, last-chance saloon twice before in 1994 and 1998 but on both of those occasions their fate was not in their own hands.In 1994 they beat Wimbledon 3-2 - coming back from 2-0 down - with rivals Ipswich, Sheffield