Diver Tom Daley overcame an upper arm injury to secure a place in Sunday's individual 10m platform World Championships final in Barcelona.
Great Britain's Daley, 19, scored 452.7 to finish seventh with Olympic champion David Boudia top of the rankings.
"It's been tough and painful but I got through by doing enough," Daley said.
The Devon teenager was concerned with his fitness before the event and played down his medal hopes, although coach Andy Banks always remained optimistic he will be fit enough to qualify for Sunday's final.
He looked in pain during the preliminaries but strapping in the semi-finals seemed to aid his performance.
Daley, who also suffered an injury to his elbow in May, received treatment between each round throughout the day and admits challenging for the podium will be difficult on Sunday.
"I woke up with sore triceps and it is just the worst thing that can happen ahead of a competition because there is so much force that goes through them," he said.
"I've had to work with the medical team after each round in the prelim. They were putting me back together, raising my arm above my head, compressing it, to reduce the swelling."
Daley feels it will be a case of managing the injury in Sunday's final as he doubts his body will by able to recover in the next 24 hours.
"It's hard to get better when I'm diving on it," he added.
"With this triceps injury and the preparations I've had pretty much all year, it's going to be one of those competitions where I just go into it and give it my best shot."
Team-mate Daniel Goodfellow, 16, who is seen as the most likely candidate to replace Peter Waterfield as Daley's long-term partner, finished 28th in his major international debut.