Nine of Chelsea FC's ten nearest neighbors — measured by how closely their audiences resemble Chelsea's in composition — are football entities, spanning Sports Teams, Sports Leagues, a Sporting Event, a broadcast channel, and a football media outlet. Similarity here is a 0–1 score reflecting audience shape overlap, not thematic relatedness.
The shape is broad: scores run from 0.92 down to 0.86 across the top 10, with no single neighbor pulling far ahead of the rest. Arsenal leads at 0.92, followed closely by FIFA World Cup at 0.90 and Liverpool FC at 0.89 — rival clubs and the sport's flagship tournament drawing audiences that look nearly identical to Chelsea's. Three Sports Leagues fill the middle of the set: FIFA.com (0.88), UEFA Champions League (0.88), and Premier League (0.87). B/R Football (0.89) and FOX Soccer (0.88) represent football media — a podcast/radio outlet and a TV channel — whose audiences track the same shape. Zlatan Ibrahimović (0.87) is the sole individual athlete in the top 10, and Manchester United (0.86) rounds out the set as the third fellow Sports Team alongside Arsenal and Liverpool.
The result is a top 10 that is almost entirely a single sport's ecosystem — clubs, governing bodies, competitions, and media — with no crossover into other sports, entertainment, or consumer categories at this tier.