West Ham are still being affected by the sickness bug that contributed to their 5-0 rout by Fulham on Sunday.

David Moyes has revealed that some players are struggling with illness as the Hammers look to finish top of Group A of the Europa League by securing at least a draw against SC Freiburg tonight (Thursday, 8pm).

The London Stadium clash is the first of four matches in three competitions over 10 days for West Ham, who have already qualified for the knockout phase but are hoping to progress as top seeds and thereby avoid the burden of a play-off over two legs.

"We've had a few people with a bit of illness. We've still got a few lingering with it in the last day or two, but we think we're OK," Moyes said.

"I don't think it's anything that will keep people out for weeks or anything like that, there has just been a bit of sickness and all sorts going on. It's just been keeping us under the weather a little bit."

West Ham leaked five goals at Craven Cottage, ending a six-match unbeaten run which had lifted them to ninth in the Premier League as well as offering sight of direct entry into the Europa League's round of 16.

"I obviously didn't enjoy the weekend's game. Whatever happened before that doesn't make it any easier," said Moyes, who gave his players two days off at the start of the week in anticipation of the hectic period coming up.

"We've had a really gruelling schedule and the trips we've had caught up with us a little bit.

"Hopefully we can correct that and get back to our normal way which is winning and playing better than we did do.

"We had a little bit of illness that didn't help with the chopping and changing. Hopefully we can get back to normality."

West Ham are the current Europa Conference League champions after toppling Fiorentina 2-1 in the final in June and Moyes sees the competition as an important stage for his team.

"The last few years we've had some really good nights at London Stadium. I think back to Seville and Alkmaar," he said.

"Some of the games have been special, special nights for us. But we're not quite at that stage yet, it's still the group.

"We've won the group for the last two years and winning it three years in a row would be really tough because Freiburg are a good team.

"We're in Europe after Christmas and that's the most important thing, whether we're first or second. We'll try to be first, but that's the big thing for us.

"The Premier League will always be first and foremost for me, but the cup competitions are something that we take as seriously as we can."

*copy from PA.