When sort the market by defense at default position, numbers appear to be on a much higher scale than the defense shown on the card
Cardshop
Sort by Defense at Primary Position and Catcher (just to show one position)
What we get:
List of catchers lead by Austin Hedges with 180 def, then Jock Milligan 175 defense
What we expect:
List of catchers with the number reflecting the overall catcher rating (Hedges 90, Milligan 88, etc.)