An Olympic first-timer, Krejci represented his country at the 2008 World Championships held in Quebec City and Halifax, Nova Scotia. At the age of 22, he started the tournament on a line with Patrik Elias and Martin Erat.
In his first international experience Krejci played for the Czech Republic at the 2005 World Junior Championships winning a bronze medal in Grand Forks, North Dakota.
[He's] real confident with the puck now, getting it off his stick quick and no second-guessing. We need that. He's such a good guy in the room. He works so hard. That's the big thing. For not a big man, he just fights for every puck and when he scores, the guys appreciate that even more.
— Winnipeg Jets coach Paul Maurice on Mathieu Perreault, who scored two goals in win against Chicago Blackhawks on Tuesday