Nigeria’s Alex Iwobi and Danny Welbeck may not feature in Arsenal’s FA Cup sixth round clash with Lincoln City on Saturday.
Both players missed the north London club’s embarrassing 5-1 Champions League defeat to Bayern Munich on Tuesday due to illness and they have yet to recover.
“I believe that we have two uncertainties,” said Wenger.
“Welbeck, who had to come off after the warm-up against Bayern due to sickness, and Iwobi, who on the day of the game couldn’t turn up as well due to the same problem.
“Everyone else should be available.”
Mesut Ozil, meanwhile, has also been battling illness but, having come off the bench against Bayern, is expected to feature on Saturday, according to reports.
Lincoln seeking upset
In the meantime, Lincoln City are looking to pull off possibly the biggest shock in the FA Cup’s 146-year history.
The side are coached by a pair of inseparable brothers who were teaching physical education in a secondary school just nine months ago.
They are reported to have a marksman who was recently working in a factory making diggers, and a forward who runs his own mobile hairdressing business.
They are a club from a quiet, picturesque cathedral city in the east of England that haven’t played in the English professional leagues for six years and, not so long ago, had attendances of 2,000 people for its games.