Player autographs??

Quick question if anyone can help. I’m bring my 6yr old down to the game against Southampton on 29th October. He’s been to a few games but is now talking about wanting to get some autographs. Is it still possible to do these when the players arrive? If so, what time would we need to get there? I remember doing this as a kid but that’s 25+ years ago now. Since then I’ve just turned up to my seat just before kick off.

Cheers for any help.