WBO world lightweight champion Ricky Burns believes he was starting to get on top of Jose Gonzalez at the Emirates Arena in Glasgow on Saturday night before the Puerto Rican dramatically quit on his stool before the start of the 10th round.
Gonzalez, the 29-year-old mandatory challenger, showed why he arrived in Scotland unbeaten in 22 fights as he took the bout to the home favourite.
Burns was three rounds down on all three judges' scorecards when the contest sensationally came to end as Gonzalez quit due to a wrist injury.
Asked if he relieved at the outcome, the Scot said: "Not at all. I felt that he was starting to tire.
"The volume of punches he was throwing was less, he was on the back foot a lot more.
"I knew it was tight but I always go for a strong finish. I train for a hard 12 rounds and it's the championship rounds where you get found out.
"I didn't think I had to stop him but I knew I had to win those (later) rounds convincingly.
"Even though I was missing with 50% of the punches I was throwing he was still under pressure and he didn't like it."