José Francisco "Kikin" Fonseca Guzmán (born October 2, 1979, in León, Guanajuato) is a Mexican football striker. He currently plays for Barcelona FC.
Fonseca made his first division debut with La Piedad in the 2001 Invierno season. After two seasons with Piedad, in which he played mostly as a substitute, Fonseca moved to UNAM Pumas, where he emerged as a star. After impressive showing in the 2003 Apertura and Clausura, he cemented his place in the Pumas starting lineup in the 2004 Clausura, during which he helped lead UNAM to a championship. After helping Pumas to a second title in the 2004 Apertura season, he was transferred to Cruz Azul, having registered 25 goals in 81 appearances for Pumas. At the beginning of 2005, Fonseca moved to Cruz Azul in one of the biggest transfers in Mexican league history. In Cruz Azul, he also was an important player playing 60 and registering 2 goals, help Cruz Azul reach the quarterfinals.
On July 27, 2006, Fonseca signed a four year contract with the Portuguese team S.L. Benfica. Although playing in only 8 league games and scoring 1 goal (he also played in 3 cup games scoring 2 goals) in Portugal, Benfica's fans liked Fonseca's attitude and his charismatic personality. His first goal at S.L. Benfica was on December 21, 2006 when he headed in a pass from Nuno Gomes against Belenenses. Kikin scored another two goals in a match of the 4th round of the Taça de Portugal between Oliveira do Bairro SC and Benfica that ended 5-0.[1]