You can use Growth Points to increase the stat of your Player. You earn one Growth point every time your Player levels up.Follow these steps when increase the attributes a player:
1. From the Main Lobby, Go to [Team Management].
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2. Select a player >> [Details] then tap on the [Growth] button.
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3. Tap on the [Plus] sign of the desired stat that you want to increase and then Tap on [Upgrade]. The gold cost increases as you add points for each stat.