The Premier League side will likely be without Timber, 23, after he missed their recent match against Bournemouth due to an injury. Timber was injured during their previous game against PSG and Arteta is unsure if he will recover in time for the next match.
When asked if he was confident Timber would be fit to play against PSG, Arteta replied, "no". He explained that Timber was unable to play in their previous match and they have another game in just four days.
When pressed for more information about Timber's injury, Arteta said he couldn't provide any details.