Lopetegui took training as usual on Tuesday but his spell in charge is set to come to end less than eight months after he took over from David Moyes.
It comes days before accused mastermind Khalid Sheikh Mohammed’s scheduled guilty plea in an agreement that would spare him the death penalty.
It comes nearly a week after Matthew Livelsberger, 37, fatally shot himself just before the truck blew up in Las Vegas.
Huddersfield Town made it 15 league games unbeaten as defeated promotion-pushing Wycombe Wanderers 1-0 at Adams Park.