Mooy has criss-crossed the globe in the past week and half and packed in the air miles, heading from England to Japan and then on to Australia for World Cup qualifiers, before returning to West Yorkshire.

The Socceroo midfielder did not feature in the 2-0 loss to the Samurai Blue, but played the full 90 minutes against Thailand in Melbourne, which saw the green and gold prevail 2-1.

In a dominant display in that match at AAMI Park Mooy had six shots, 118 passes, with a 91.5% passing accuracy, and 156 touches.

Despite the long travel, Wager is expected to select his star man to start against the Hammers at the London Olympic Stadium.

“The international break doesn't change what we had in our head what we wanted to do,” the Terriers manager said.

“We are very lucky in that we play Monday and not earlier, like on Saturday. There's no concerns about fitness. Aaron arrived late on Wednesday night and he started training again on Thursday.

“We have enough time to prepare the players for West Ham.”

Mooy has played every minute of Huddersfield’s Premier League campaign to date. The newly promoted club are unbeaten so far with two wins and a draw from their first three league fixtures.

Mooy recorded an assist in the opening day victory over Crystal Palace and then scored the winner in a 1-0 result against Newcastle United.

Wagner has no concerns that the 26-year old will be too jet-lagged to face West Ham.

“I always give him the advice to sleep on the plane!” the German joked.

“It's a long flight. He and us are used to it now but the good thing, if there is such a thing, is that he only played one game, not in the first one against Japan as he was ill - and the good thing is we only play on Monday.

“Our medical department gave him some advice about what he could do before and after the game and before and after the flight but if you're used to it, it's maybe a bit easier - also it's very early in the season.”