Ecuadorian winger Joffre Guerron has terminated the contract with Beijing Guoan. The player is leaving China this morning.â?? TransferMarkt China (@asaikana) julio 8, 2014 REDACCIÓN Ecuadorian winger Joffre Guerron has terminated the contract with Beijing Guoan. The player is leaving China this morning.â?? TransferMarkt China (@asaikana) julio 8, 2014