Everton remain confident they will sign Romelu Lukaku this summer, with Roberto Martinez telling fans: "Of course we'll get him".

The future of the Belgium international has remained uncertain since his loan spell at Goodison Park ended last season.

The 21-year-old may yet remain at parent club Chelsea next season, however the arrival of Diego Costa and return of Didier Drogba to Stamford Bridge has led to an expectancy that he will depart.

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Everton have made little secret of their desire to see Lukaku playing at Goodison Park next term following a season in which he scored 15 goals in 31 Premier League appearances. It was when questioned by a fan during Everton's trip to Thailand that Martinez revealed his optimism.

Shape Created with Sketch. Everton: Potential summer transfer targets Show all 5 left Created with Sketch. right Created with Sketch. Shape Created with Sketch. Everton: Potential summer transfer targets 1/5 Salomon Kalou Everton face competition from cross-town rivals Liverpool for the versatile former Chelsea forward. Although the subject of much criticism during his time in west London, Kalou has taken it up another gear in Lille and has scored 30 goals in 66 matches in Ligue 1 playing in a more central role. His ability to play across the front three would make him a valuable asset in Everton's squad. GETTY IMAGES 2/5 Roman Eremenko The Finnish attacking midfielder moved to Rubin Kazan from Dynamo Kiev for around €13m in 2011. But with just a year left on his contract, and Eremenko threatening to leave for free next summer, the Russian club are keen to cash in. He mostly plays behind the striker, but can play across the midfield, and though his goal scoring record isn't great he is classy on the ball and likes to dictate play. 3/5 Samuel Eto'o The veteran striker is still without a club after being released from Chelsea. Roberto Martinez might see him as a cut-price option if he can't land one of his primary striking targets. Chelsea's strikeforce was often critcised last season, but the 33-year-old was the best of a bad bunch scoring none goals in 21 Premier League games for the Blues. 4/5 Anthony Koura The 21-year-old striker scored only three goals in Ligue 2 last season, but according to reports Everton have watched the Nimes man on a number of occasions. Not much is known about the striker, but he has been previously linked with Newcastle. 5/5 Modou Barrow The Gambian winger is being chased by a number of clubs with Everton competing with Hull, QPR and Swansea for the quick striker - though Celtic are believed to be in pole position. Ostersunds want around £1.5m for Barrow, who was on trial at Bolton Wanderers last week. Barrow is in superb form in the Swedish top division, with seven goals and five assists in 13 matches so far this season. 1/5 Salomon Kalou Everton face competition from cross-town rivals Liverpool for the versatile former Chelsea forward. Although the subject of much criticism during his time in west London, Kalou has taken it up another gear in Lille and has scored 30 goals in 66 matches in Ligue 1 playing in a more central role. His ability to play across the front three would make him a valuable asset in Everton's squad. GETTY IMAGES 2/5 Roman Eremenko The Finnish attacking midfielder moved to Rubin Kazan from Dynamo Kiev for around €13m in 2011. But with just a year left on his contract, and Eremenko threatening to leave for free next summer, the Russian club are keen to cash in. He mostly plays behind the striker, but can play across the midfield, and though his goal scoring record isn't great he is classy on the ball and likes to dictate play. 3/5 Samuel Eto'o The veteran striker is still without a club after being released from Chelsea. Roberto Martinez might see him as a cut-price option if he can't land one of his primary striking targets. Chelsea's strikeforce was often critcised last season, but the 33-year-old was the best of a bad bunch scoring none goals in 21 Premier League games for the Blues. 4/5 Anthony Koura The 21-year-old striker scored only three goals in Ligue 2 last season, but according to reports Everton have watched the Nimes man on a number of occasions. Not much is known about the striker, but he has been previously linked with Newcastle. 5/5 Modou Barrow The Gambian winger is being chased by a number of clubs with Everton competing with Hull, QPR and Swansea for the quick striker - though Celtic are believed to be in pole position. Ostersunds want around £1.5m for Barrow, who was on trial at Bolton Wanderers last week. Barrow is in superb form in the Swedish top division, with seven goals and five assists in 13 matches so far this season.

Ian Atkins, Everton's head of recruitment, echoed those sentiments on Saturday evening when he told talkSPORT: "Hopefully things can be sorted out, I think he’s quite settled in his mind that he wants to come to Everton, and hopefully he’ll be pulling on our blue shirt again next term."

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Bundesliga side Wolfsburg have also been linked with a move for Lukaku, and perhaps more surprisingly, so have Real Madrid.

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