In a close one, the workrate and persistence of bustling Mexican Rosendo Hugo Guarneros earned a repeat victory over local favourite Tommy Frank, via split decision, at the Sheffield Arena Car Park on Friday evening.
Scores were 117-112 and 115-113 for the visitor, trumping a 115-113 card for Frank.
Flyweight Frank (13-2, 3 KOs) had been hoping to avenge an eighth-round injury loss to the Mexican last December. His shots seemed crisper, but the swarming and aggressive Mexican finished more strongly to pip him at the post.
The high octane Guarneros rises to 18-4-2 (9 KOs) to cement his No.12 rating with the IBF.