Merlin, a domesticated duck from Mexico City, has become an unlikely unofficial World Cup mascot after videos showing him wearing a Mexico “El Tri” jersey and custom duck socks spread across social media. Multiple reports describe Merlin as a regular streetside presence who is repeatedly seen in the team’s colours, waddling around public places and joining football-related celebrations. During Mexico’s World Cup opening match against South Africa, Merlin’s visibility and the public’s reaction helped drive his rise into an internet sensation. As interest grows, people across Mexico City appear to seek him out, and local media and interviews feature him as fans treat him as a fan favourite and “ambassador” for the national campaign. Some outlets also note a broader commercial and media response, including products and attention at major TV stations, where Merlin meets journalists and is discussed in the context of Mexico’s tournament run. While Mexico players such as Julián Quiñones and Raúl Jiménez score in matches, sources consistently say Merlin draws attention and steals focus for many supporters.