Gibbs was a junior player with the former Wimbledon before they went bust.
He told arsenal.com: "I didn't really understand what 'administration' meant at 13, so none of that really interfered with my football. I actually played in a few games up at Milton Keynes, which was a bit too far away from Croydon, before leaving.
"We just went along with what was going on. I remember playing at Arsenal one day and hearing a few days later that they were interested in me, James (Dunne) and Abu (Ogogo). I didn't really take it seriously, but then mum asked Jaydon and I if we wanted to go along and see what Arsenal were like, and it went from there."