city site doesn't seem to have the junior/ senior pricesTaken from Arsenal's website https://www.arsenal.com/tickets/arsenal/2018-Feb-25/manchester-city
Tickets are priced at £100 (extremely limited), £90 (limited), £72, £56 and £40. Concessions will be available to Juniors (16 years and under) and Senior Citizens (over 65) at 50% of the advertised price and Young Adults (17 years - 21 years) at 25% discount of the advertised price. Booking fees will apply.