On the subject of the degeneration of shirts like these may I make a suggestion based on a few years of fabric and detergent development.
Shirts with this type of transfer should be washed inside out to stop rubbing wear. Even better if you can place it in a zip up washing bag. Low temperatures should be used with plenty of detergent and if BO is an issue use a conditioner. Try not to put in a fast spin, rather put on a hanger to dry. An obvious one is NEVER IRON. "Hi tec" sports shirts generally have high fabric development costs but cheap manufacturing processes.
I promise to get out more.