Rivalry consequences of fighting. However, when the competition is not enough in sports and the tensions are high fighting may ensue. Rivalries may increase motivation, lead to greater effort, and better performance. It may also contribute to greater risk taking behavior among participants, and increase a propensity for unethical behavior. These difference may lead to poor decision making on the part of groups and individuals that may not otherwise take place in the absence of a rivalry. Examples examined in the literature include the 1994 attacks by figure skater Tonya Harding against her rival Nancy Kerrigan, the admission in court by
U.S. Figure Skating World Synchronized Skating Championships, the World Figure Skating Championships, and the Olympic Games. Although the participants for Worlds and the Olympics are most often the top placers at US Nationals, there have been several times when other skaters have been selected due to injuries preventing them from competing at Nationals; Nancy Kerrigan being selected for the 1994 Olympics over 2nd-place finisher Michelle Kwan is one example. Most recently 2014 4th-place finisher Ashley Wagner was selected over 3rd place Mirai Nagasu ostensibly because of Wagner's more consistent international record; however because of Wagner's many endorsement contracts her selection has raised concerns