 Complete the following phrase:  Krivoshapka suffered an injury in an unusual fashion in early 2010  while doing sprint training on a track in Volgograd, a young boy walked into her path and she strained her back in the ensuing collision. She missed the 2010 IAAF World Indoor Championships as a result but fully recovered in time for the outdoor season. Later that year at the 2010 European Athletics Championships, she claimed the 400 m bronze medal. She won a silver medal as part of the Europe 4 × 400 m relay team at the 