The Olympic campaign of New Zealand's Daniel Bell is struggling against injury.
Swimmer, Bell, required a cortisone injection on Wednesday ahead of Sunday morning's 100m backstroke heats where he finished 37th out of 43 competitors.
Bell posted a time of 55.53, over a second down on his personal best of 54.39, having been forced to contend with a seriously disrupted preparation period in the final lead-in to the London Games.
After the injury forced him to take two days out of the pool last week, Bell has still been unable to train properly now back in the water, since Wednesday.
"I've had a few shoulder problems and I'm more or less just grateful to be out there racing and having a hit-out," Bell said after the 1oom backstroke.
"I haven't been able to do any effort in the pool for four days and had two days off four days ago when I got cortisone in my shoulder.
"I owe huge thanks to the medical staff back at the hotel for one, getting me in the pool and two, enabling me to finish the race."
After missing out on the 100m backstroke semifinals, Bell still has potentially two races to go in his Olympic campaign, the 100m butterfly and men's 4x100m medley relay.
The good news, is that the first of those events, the 100m butterfly, isn't until Thursday and the Taranaki 22-year-old, who swims out of the AquaBladz club, is optimistic he'll be able to make his way through the full Olympic programme.
"The shoulder's affected my backstroke a lot more than my butterfly," he said.
"Coming into this meet the butterfly's been more or less my focus, even though the backstroke is what I originally qualified for.
"With the relay in mind as well, getting through the first race is a huge confidence boost going into the last events I've got here.
"Hopefully I can get a time I know I'm capable of and get that relay into the final on day seven."
- Fairfax Media