The ex-Gunners striker found the target with a spectacular 30-yard strike, but his efforts were not enough to prevent a 5-2 defeat to Urawa Reds
Park Chu-young made little impact during his time at Arsenal but he has been showing his true colours at FC Seoul.
The South Korea international joined the Gunners from Monaco in 2011, but left three years later having made just seven competitive appearances.
He graced only one Premier League fixture, with opportunities proving hard to come by under Arsene Wenger.
Park had offered enough in France, though, to suggest that he was a capable performer.