SOCHI, Russia (AP) A five-time Olympian, Hayley Wickenheiser has been representing Canada in the Winter Games ever since women's hockey was added to the program.
And she likes the progress the sport has made.
"This is the most competitive Olympics we've ever seen," she said this week after winning her fourth gold medal in a 3-2 overtime victory over the United States. "You just don't know what's going to happen in most of the games. There's a lot of entertainment value in that."
Ice hockey at the Olympics has changed plenty since it made its debut outdoors at the Winter Games in 1924. Rules have been modified, the format has changed and amendments have been introduced to allow professionals to compete. While the basics of the game remain constant in North America and throughout the rest of the world, many differences will be noticed at the 2014 Olympics in Sochi. The best players in the world will compete under international rules. Take a look at the game's history along with how the game differs between North American and international competition, from rink dimensions to fighting tolerance.