By Luke Reddy
BBC Sport at Hull Ice Arena
Gavin McDonnell's dream of joining twin brother Jamie as a world champion was shattered as classy Mexican Rey Vargas scored a points decision to land the vacant WBC super-bantamweight title.
The 30-year-old produced a display of immense grit, landing telling blows in the ninth round, but his 26-year-old opponent's confident work throughout saw him gain a 114-114 117-111 116-112 decision.
Victory would have delivered Britain's first simultaneous twin world champions, with Jamie McDonnell already in possession of the WBA bantamweight belt.
But Vargas - unbeaten in 29 bouts - was rewarded for his control of the early exchanges and left the noisy Ice Arena in Hull with his first world title.
More to follow.