Arsenal were one of a number of European clubs in attendance during Feyenoord's Eredivisie game against FC Emmen at the weekend to keep tabs on talented youngster Orkun Kokcu.
The 17-year-old came off the bench at half-time to make his league debut for the first team, before marking the milestone with a goal and assist in a 4-1 win.
According the the Daily Mail, Arsenal were joined in the stands by Bundesliga side Borussia Dortmund and Eredivisie giants PSV Eindhoven to monitor the midfielder who is viewed as one of the brightest talents in Europe.