By Amanda Langell Over the last five years, Major League Soccer teams have enticed international players to the United States with the most expensive MLS transfer fees of all time. Although Europe’s top five leagues still produce the highest transfer fees in the world, the MLS is slowly catching up. In fact, the transfers happening today were virtually unheard of for most MLS clubs a decade ago. Record signings seem to happen every MLS transfer window now, and more and more big names are choosing to play in the United States and Canada. Check out the ten most expensive transfers for players jo…