FC 24 Nike items are automatically upgraded in specific dates.

FC 24 Nike Tracker

List of every single Mad Ready item, their potential and confirmed upgrades.
Alexia Putellas 91
Sam Kerr 90
Virgil van Dijk 89
Federico Chiesa 84
Enzo Fernández 83
Click or tap in the player overall rating to see his Mad Ready item
FC 24 Nike Tracker

A Mad Ready item is a special category of item assigned to a very limited selection of players, replacing their regular cards at specific times. These cards receive automatic upgrades in one of the facial statistics based on the boots players wear: Tiempo, Phantom Luna, Phantom GX, or Mercurial.