We all know that professional soccer players are as much about money as they are about the game, but there are some players who take the money part further than any other. Here are the 20 most expensive soccer transfers of all time!

Gaizka Mendieta

Gaizka-Mendieta-Optimized

Valencia to Lazio for $44.8 million in 2001

Ronaldo

Ronaldo-Optimized

Inter Milan to Real Madrid for $46.35 million in 2002