They are upgraded having a blue TOTY card which becomes obtainable in packs for a week (two days for every position and a final day time with all players together).
Within the week a player gets their TOTY card in packs, it's impossible to find his normal card there. Your odds of pulling the TOTY card from a pack are a similar of pulling the regular card of this player in another week. Should you own the regular card of the TOTY player, your card could keep unchanged.
If you want the actual improved version, you will need to purchase the corresponding TOTY version on the market or pull it from the pack. Since FUT 10, every week EA Sports chooses eighteen players of Buy Fifa 16 Coins
any category depending on their good real performances about the previous week and joined them in one team. That team is called Team of the Week and you will play against them in the actual ‘TOTW Challenge’ mukiuikyu .