The 26-year-old is yet to make a start for the Toffees after joining from Tottenham in January and has been an unused substitute for the last two matches.
Asked if he had talked to Alli about his situation and the future, Lampard said: “I have had those discussions with him. He'll be very clear as to where I am and at the moment I'm much more concerned about the collective, getting over the line as a group.
“If Dele plays his part in these three games then great. He's come on at times and done good things for us. It's an area of the squad where we have other players that have been playing, that's just the reality of the situation.
“He needs to just keep training hard and stay really well focused and fight for the opportunity."
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