This study explored how the market value of American athletes may be influenced by the presence of international teammates. Specifically, the study examined: (a) Chinese consumers’ feelings of attachment to American National Basketball Association (NBA) players who have a distinguished Chinese teammate; (b) the relationship between Chinese consumers’ attachment level to the American teammates and their credibility as product endorsers; and (c) whether Chinese consumers’ evaluation of athlete endorsement differs for sports products and non-sports products. Respondents felt more attached to an American NBA player with a distinguished Chinese teammate compared to one with a distinguished American teammate. More-over, canonical analysis revealed that there was a significant relationship between attachment level and credibility level. An American NBA player having a distinguished Chinese teammate was perceived to be more credible as a product endorser than an American NBA player who does not have one. Additionally, when the American NBA player endorsed a sports product, respondents considered the endorsement to be more credible and showed a greater purchase intention.