Juan Carlos Pérez López (born 30 March 1990), known as Juan Carlos or Juankar, is a Spanish professional footballer who plays mainly as a left-back and occasionally as a left winger for Super League Greece club Aris.

[1] Born in Madrid, Juan Carlos started his football career at the EFMO Boadilla academy, spending 11 years there from the age of six.

[2] After two years, Juan Carlos was promoted to Real Madrid Castilla, going on to spend two full Segunda División B seasons with them.

[3] On 28 September 2010, he was called up for a UEFA Champions League group stage match at AJ Auxerre, but eventually did not leave the bench in the 1–0 victory.

[7] On 7 July 2011, Juan Carlos signed with fellow top-flight club Real Zaragoza from third-party owner Quality Sports Investments, via S.C.