9. Lucas Barrios
Another pivotal figure during Borussia Dortmund's Bundesliga-winning years, Lucas Barrios was the focal point of Dortmund's attack under Jurgen Klopp.
After short stints with various clubs across South America, he appeared right at home in Signal Iduna Park after arriving in 2009. The Paraguayan led the line for the BVB with aplomb and was also one of the best strikers around at the time, even helping his side to the league title in 2011.
However, the emergence of Robert Lewandowski reduced him to a subordinate role during the following year's Bundesliga and DFB-Pokal success as Barrios then sought greener pastures in the Chinese Super League.
He left with 49 goals from 101 appearances and three trophies under his belt.