There is no gender pay gap in Canada when you take into account hours worked, career choices and time off for maternity. Taking this into account more than makes up for the 87 cents for every man's $1.00 in wages. This is nothing but feminist propaganda. 
Woman's soccer in the USA: Revenue generated from men's soccer is 10 times higher than woman's soccer, hence the difference in pay. Same goes for golf, hockey, basketball, rugby etc. Many of these woman's leagues are on a very unstable footing close to folding.
Tennis: woman have pushed for equal pay in Wimbledon and the majors, but they continue to play less sets to win a match and are always paired with men's events to ensure they are financially viable in grand slam tournaments
Just adding some balance to the argument.