BMX rider Arielle Martin of the United States has had surgery after injuring her liver and lung in a crash during practice last week that knocked her out of the London Olympics.
Martin’s family said in a statement Sunday that the medal contender had a setback after she was upgraded from intensive care to a trauma unit. The 27-year-old athlete had sustained a severe laceration to her liver and a collapsed right lung in a crash during a final practice July 30.
The operation removed   … More