Acquired by the Philadelphia Union on Jan. 15, 2014 from Argentinos Juniors (Primera Division) after a return from Atlante of the Mexican League. Maidana appeared in five matches for Juniors, logging 137 minutes.
2011-12: Spent two seasons playing for Rangers (Primera Division) appearing in a total of 31 games. Throughout these two seasons, Maidana recorded two (2) goals.
2010-11: While on loan, Maidana appeared in 13 games for Huracan (Primera Division), logging 903 minutes.
2010: Appeared in 10 games, logging 408 minutes for Spartak Moscow of the Russian Premier League.
2008-09: Played for Recreativo Huelva then of the Spanish first division (La Liga). He appeared in six matches scoring a goal and adding a pair of assists.