Holmes won a 1500 metres silver medal and 800 metres bronze medal at last year's World Championships in Gothenburg and is one of Britain's strong medal hopes in Atlanta. The 26-year-old is still hopeful of taking part in the Games when the 800m heats start at the end of the week.
A spokesman at the British Olympic training camp in Tallahassee said: "Treatment for her injury has been underway and the response so far is encouraging. When she arrived she had already developed what appeared to be a bruise over the two or three days prior to leaving home.
"There is obviously some concern regarding the advisability of competing as there is a possibility of the injury progressing through the rounds of the competition. But Kelly is very positive and determined to run."Reuse content