Our Norwegian striker came off at half-time against Aston Villa on Sunday after picking up a knock.
The boss explained at his post-match press conference that it was decided best not to take a risk with Haaland with City 3-0 up at the time.
Fears were allayed somewhat when Erling joined the squad at the CFA for Monday's recovery session, but he will be assessed again after Tuesday afternoon’s session.
At his pre-Arsenal press conference, the boss said: “We train this afternoon. Right now I don’t know.
“Yesterday was about recovery from Aston Villa. That’s all.”
Guardiola said that on Sunday that if there was even the slightest risk, he wouldn't risk his top scorer at the Emirates.
More reaction from Pep’s press conference will follow on mancity.com shortly…
ARSENAL V CITY
City travel to Arsenal on Wednesday for a 19:30 kick-off and you can follow the game across mancity.com and our official app.
We will start live updates at 17:30 on our Matchday Centre and that will run throughout the evening.
Our Matchday Live programme will begin shortly before team news arrives at 18:30. Natalie Pike will be in the studio with Steve Howey and Paul Dickov to give you a City-centric view on events in North London.
During the game, Alistair Mann and Michael Brown will talk you through proceedings with our radio commentary offering.
Afterwards, we will bring you all the reaction from North London before short highlights and extended highlights are available from midnight.
CITY+ subscribers can watch the entire 90 minutes back from midnight.