Understanding brand relationships as perceived by consumers is important for the successful management and marketing of connected brands. Brand architecture and consumer behavior literature was integrated in this study to examine brand relationships between professional sport leagues and teams from a consumers’ perspective. Online questionnaire data were gathered from football consumers (N = 752) to test the influence of leagues and teams on consumer loyalty. Consumers were segmented into three theoretically identified sport brand architecture groups: league dominant, team dominant, and co-dominant. Findings of CFA, MANOVA, paired-sample t-tests, frequency analysis, chi-square and linear regression analysis revealed that leagues and teams were in a co-dominant relationship with one another. Results revealed the brand architecture of leagues and teams as perceived by consumers, provide a reliable and valid tool to segment sport spectators, and showcase the influence of external factors on consumer loyalty with a team. Suggestions for league and team management and marketing are presented to better leverage their brand relationship and increase consumer loyalty with both brands.