Arsenal have been hit with a sickness bug ahead of their crucial Premier League trip to Leicester on Saturday.
A win for the Gunners would take them up to fifth place in the table, and extend an unbeaten run which has been in place since they lost 5-0 at Manchester City at the end of August.
Mikel Arteta's side kept up their fine recent form with a 2-0 victory over Leeds United in the Carabao Cup on Tuesday, but defender Pablo Mari was forced to miss the game with a sickness bug.
Fellow centre-back Ben White then complained of illness during the game, and was substituted early in the second half as he felt unwell.
Arteta says that the sickness bug has spread throughout the squad, with some players unable to prepare for the trip to the Foxes.
"It was a bit of sickness, tummy aches and stuff like that. Hopefully everyone will be OK," Arteta said at his press conference on Friday.
"[White] hasn't trained yet so we will have to wait and see how he is feeling and make the decision then.
"A few have been unable to train and we also picked up some knocks in the game against Leeds as well. Hopefully we will have better news."
Defender Kieran Tierney missed out on the Leeds clash with an ankle knock, and Arteta says the Gunners will monitor his fitness before the game.
"He’s progressing training," said the Spanish boss.
"Let’s see how he is today. He felt a bit better last few days but he wasn’t 100% the other day to start the game.
"Again we’ll see what happens is in the last 48 hours."
In Tierney's absence summer signing Nuno Tavares has impressed, with the Portuguese delighting fans with his display in the win over Aston Villa last Friday.
"Yeah he had an impressive performance for the first Premier League debut and to play the way he did with that intensity which he is not used to," he said.
"Credit to the boy. I really like what he did. He’s still really young, he’s improving and he had a really good performance."
