Krejci has been hampered off and on by the hip injury since a preseason game in 2014. He had 17 goals and 63 points in 72 games last season.
"I'm looking at it as I want to be 100 percent," he said. "If I'm 100 percent, then obviously I want to play. You don't want to be sitting on the sidelines when you're 100 percent and you know you could be there. This is a pretty big tournament and I would love to be a part of it. But at the same time, if I'm not 100 percent then I'm not going to feel bad. I just want to get 100 percent and play my best hockey."
Krejci, who represented his homeland in the 2010 and 2014 Winter Olympics and the 2005 World Junior Championship, has been keeping in touch with Team Czech Republic management.
"I'm in contact with the national team coach [Josef Jandac] and we talk pretty much every week," he said. "They're asking about my updates, so we kind of know what's going on. I'm sure they have some backup plan if that's not going to work out, so we'll see what happens."
Krejci was unsure if there was a cutoff date for a decision on whether he can play in the World Cup. His focus is on his recovery and maybe getting the chance to represent his nation again if everything works out.
"Another day closer. I've done some more stuff today and I'm already on the ice, so kind of getting there," he said. "But obviously this injury takes time. But I like where I'm at right now. Every day is a step closer, and I'm excited for tomorrow."