Everton boss Roberto Martinez says they need Champions League football to keep their stars.

The likes of Romelu Lukaku, John Stones, Ross Barkley and Gerard Deulofeu all have at least one eye on Champions League football.

Martinez said: "We can't just go through the motions and finish the season looking good, we have to achieve.

"But I think now we've got the tools and the mentality to be as good as we can.

"There are two things that can keep a player happy.

"One is that he's got a stimulation to become better and he can see that he's growing every day and the other is to be in the best leagues and the best competitions.

"So you have to get into the Champions League, that's the top and bottom of it.

"That's why sometimes you have to set a season where everyone invests into the team and then see where that can take you, that's what we're doing now."