Olympic champion and pole vault record holder Yelena Isinbayeva will compete at next month's world championships despite suffering a hand injury last week, Russian athletics chief Valentin Balakhnichyov said Monday. Isinbayeva, who had returned to competition this year after an 11-month break, was forced to pull out of a meeting in Lucerne last Thursday after the Russian injured her wrist. “I spoke to Yelena shortly after her injury and she told me not too worry too much,” Balakhnichyov told pressmen.