The training ground in east London, which is separate from Arsenal’s senior base at London Colney, is where the next generation of Gunners stars are developed.
The facility will be shut on Thursday while a deep clean takes place, after which the club will review the situation, while six further members of staff have so far been told to self-isolate.
An Arsenal statement said: “We can confirm that a member of staff from our Hale End Academy has tested positive for Covid-19. The positive test result arrived at 5pm today and the member of staff immediately left the site to self-isolate.
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“As a consequence, six other members of staff are now self-isolating and we have initiated track and trace for the entire site. We are working through our CCTV and attendance records on site in order to continue the track and trace process.
“Our Hale End Academy will now be closed on Thursday 8 October for deep cleaning. After Thursday, we will review our coaching plans at Hale End accordingly and will keep all staff, parents and young players fully informed.
“The health and safety of everyone on all our sites is our paramount concern. No members of our men's or women's first team squads have been affected.”
