Player Tiers are a way of increasing players’ key attributes and their OVR. Every Tier enhancement means a permanent increase in white attributes that remains active until the player retires. 

Any player is eligible for a Tier increase. There are 6 Tiers, each sequentially increasing the player's key attributes once it's reached.

To activate the Stellar Tier, the Elite Tier must be applied to the specific player. In order to obtain the first Rare Tier, a Manager must collect enough complementary (Rare) Tier Points across the game and apply them to the player. Also, Gems can be used as a currency replacement if the Tier requirements exceed the Manager’s Tier Points stash.

Reminder: Player’s OVR consists of stars (base quality) and Tier increase (permanent key attribute increase). Every promotion in the new season means moving up to a more competitive League, and so the base quality will decrease by 20. This all means that, even with a star loss, Tier’s key attribute increase will stay last until the player’s retirement.