Career
Nicknamed Manotas, Mejia made his professional debut playing with Tauro in 2007. In 2008 he was transferred to Uruguayan side Centro Atlético Fénix, but finally made his team debut on 21 August 2010 on a match against Tacuarembó, being rewarded as the man of the match. His outstanding performances called the interest of various team of Europe.
In his return to Fénix, he gain the ownership in the first team
Mejía was part of the Panama U-20 squad that participated in the 2007 Fédération internationale de football association U-20 World Cup in Canada. He was the youngest goalkeeper in the world and the revelation.
He was also part of the Panama U-20 squad that participated in the 2011 CONCACAF U-20 Championship where his outstanding performances led them to qualify to the Youth World Cup in Colombia. His senior international debut for Panama came on 8 June 2009 against Jamaica, in a Friendly match.
He was part of the Panama U-23 squad that participated in the 2012 CONCACAF Men"s Olympic Qualifying Tournament which they could not qualify to the 2012 Summer Olympics.
In 2011, he was called up by Julio Dely Valdés to play the 2011 CONCACAF Gold Cup.