MLS rules explained: TFC's discovery priority for Ryan Porteous

Toronto FC pocketed $100,00 in GAM in a trade with LAFC for a player it didn't even develop or discover.

MLS rules explained: TFC's discovery priority for Ryan Porteous

In a continuing series at TFC Republic, we'll look at some of Major League Soccer's more arcane roster rules and break them down by using real-life examples so that they are easily understandable. 

In this week's edition: We explain this week's trade involving Toronto FC and LAFC over the MLS "discovery priority" for Ryan Porteous.