The research has the four objectives as follows: 1. To examine and develop a causal model of factors influencing of Demographic characteristics, Communication skills, Attitude toward Thai people, Interpersonal communication and Media usage behavior to be affected the foreign football players' adjustment in Thailand league football clubs. 2. The analysis of the direct effect, indirect effect and total effect, is focused on testing the Demographic characteristics, Communication skills, Attitude toward Thai people, Interpersonal communication ...