By Dave Langton
After the World Cup, David Moyes faces a huge headache ahead of the clash with Arsenal.
Every player that reached the quarter-finals or further are set to return to the Irons on December 23rd. 
That means Declan Rice, Nayef Aguerd, Lucas Paqueta and Alphonse Areola face having one-and-a-half days training ahead of the clash with the Gunners. Aguerd is likely to be injured, though, after sustaining a muscle problem for Morocco.
The Hammers will train as normal on Christmas Eve, and will have a half day of training on Christmas Day. The match will take place on Boxing Day.
In addition, there remain doubts over the fitness of Maxwel Cornet, while Aaron Cresswell, Gianluca Scamacca, and Kurt Zouma are all likely to be out.
That means as many as eight players could miss out on being picked in the starting XI, due to doubts over their fitness.
It is a huge problem to face up to, with the Premier League kicking back off after the Qatar tournament.
The Irons are, of course, on a run of three successive defeats in the league.
The World Cup players, other than Aguerd, will be a lot fitter than those who had a run out in the recent friendlies. There’s no reason why Areola, Kehrer, Rice and Paqueta shouldn’t slot into the starting eleven if selected.