Armstrong breaks collarbone at Exergy Tour

Team Exergy Twenty 12's Kristin Armstrong is out of the Exergy Tour after breaking her collarbone during the prologue on Thursday evening. The 38-year-old Olympic time trial champion came off her bike and suffered a nasty fall at the race's U-turn in Boise, Idaho, which is her hometown. She picked herself up and got back on her bike to complete the stage but was clearly in pain as she clutched her shoulder.