Holding onto prized asset Lukaku is Martinez's top priority during the transfer window and beyond. The Belgians pace and strength struck fear into the heart of one of England's tightest defences. How long has it been since Everton have had a player capable of that? Lukaku brought out the best in the players around him, linking up well with Barkley in the final third and providing a target for Gerard Deulofeu and Leighton Baines to aim crosses at. Stretched by the width brought by Deulofeu and clever positioning from Barkley, the City backline always looked at risk of being penetrated by Evertons prolific hitman, an issue that the half-time introduction of Martin Demichelis for Eliaquim Mangala failed to address. Lukakus goal was a textbook header. The striker giving Demichelis the slip inside the box to meet Barrys in-swinging cross and nod home, double underlining his ability to win matches for Everton in the process. But with the player harbouring Champions League ambitions and potential suitors lining up with lucrative offers, can Martinez convince him to remain at Goodison Park?