Everton have put a £45million price tag on Romelu Lukaku in an attempt to ward off potential buyers next summer.

They signed the Belgium striker from Chelsea for £28m in 2014 and the 22-year-old has enhanced his reputation with 44 goals for the club, including 16 while on loan at Goodison Park during the 2013-14 season.

Paris Saint-Germain and Juventus are believed to be interested. Lukaku is happy at Everton, but is likely to review his future at the end of the season.

Everton have placed a £45m price tag on Romelu Lukaku, pictured in training at Finch Farm on Thursday

Lukaku rounds Sunderland goalkeeper Costel Pantilimon to score in Everton's 6-2 victory last weekend

He wants Champions League football, an unlikely scenario — at least in the short term — at Everton.

Meanwhile, Leighton Baines will step up his comeback from injury next week with a behind-closed-doors friendly.

Manager Roberto Martinez says the left back is recovering well from his ankle ligament injury. 'He needs to have that confidence when making blocks and the contact you can get in a football game,' Martinez said.

Everton will be without Bryan Oviedo for three weeks with a hamstring injury, but Tom Cleverley and Muhamed Besic are almost ready to return.

Leighton Baines will play in a behind-closed-doors friendly next week after returning to training with Everton

Everton boss Roberto Martinez watches his players in training as they prepare to face West Ham on Saturday

'Baines, Mo Besic and Tom Cleverley have been training with normality with the first-team squad,' said Martinez.