Answer
The answer is 2013 and 2014. These were the two consecutive seasons that Lindsey Vonn missed due to injuries. In 2013, she tore her anterior cruciate ligament (ACL) and medial collateral ligament (MCL) in a crash during the World Cup downhill event in Schladming, Austria. In 2014, she re-injured her ACL during training for the Winter Olympics in Sochi, Russia.