Roberto Martinez admits the future of star Everton is uncertain . Belgium international has voiced ambition to play in Champions League . Mirallas has two years remaining on his contract at the Merseyside club . Aaron Lennon has been linked with a swap dealing involving Mirallas . Kevin Mirallas face Manchester United in the Premier League on Sunday .
Roberto Martinez admits the future of star Kevin Mirallas is uncertain . Belgium international has voiced ambition to play in Champions League . Mirallas has two years remaining on his contract at the Merseyside club . Aaron Lennon has been linked with a swap dealing involving Mirallas . Everton face Manchester United in the Premier League on Sunday .