Manchester United's David Moyes will turn up the heat on previous employers Everton with an improved £35million combined bid for Marouane Fellaini and Leighton Baines.

Moyes' Goodison successor Roberto Martinez claims the champions' pursuit is a waste of time.

But the Old Trafford giants intend to test Everton's determination to keep the pair and increase that "derisory and insulting" opening offer.

The next offer will rate Belgian midfielder Fellaini at £20m - still less than the value of his now-expired release clause - and England left-back Baines at £15m.

Moyes who has struck out on the transfer front so far this summer since taking over from the retired Sir Alex Ferguson is determined to land two of his Goodison old boys - aware that the Toffees need to sell to buy.

Martinez hopes to hang onto the pair.

He does not want a repeat of his experiences as Wigan manager where star performers were sold and he failed to replace them properly.

Moyes is counting on agreeing fees soon giving Everton time to re-invest the money before the window closes on September 2.

The next bid needs to be in quickly to do that.

Martinez added: “It’s been well-documented what happened with the transfer speculation.

“That’s been dealt with and it was all a little bit of a waste of time - time I don’t want the players to waste.