Wenger and Di Matteo posed together during the launch of the Pilot’s Watches Novelties from the Swiss luxury watch manufacturer IWC Schaffhausen.
The Arsenal boss, whose side head into Sunday’s clash top of the Premier League table on goal difference, also found time to catch up with Formula 1 champion Lewis Hamilton.
Wenger is looking to guide his Arsenal side to their first Premier League title triumph since their famous unbeaten season in the 2003-04 campaign.
Arsenal head into Sunday’s game on the back of two away draws, after their 3-3 thriller at Liverpool was followed up by a goalless stalemate against Stoke City.
The north London side have not beaten their local rivals in the league since 2011.
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