Jamaican sprinter Veronica Campbell-Brown won an exciting duel with American Carmelita Jeter at the IAAF Diamond League track and field meet in Switzerland yesterday.In a close finish in which little separated the two runners in the women’s 100 metres, both competitors were clocked at 10.89 seconds.Campbell, who has made very few appearances on the international circuit this season, however, was adjudged the winner in a photo finish.“My shoulder was a little bit in front so I had the feeling just after the line that I could be the winner,” Campbell-Brown said.