As if the idea of the San Jose Sharks being without rookie sensation Tomas Hertl for a month wasn't bad enough, it could be a lot longer than that. Hertl was involved in a knee-on-knee collision with Kings captain Dustin Brown last week, one that left Hertl in a world of hurt. It wasn't immediately clear how long he was going to be out but it's going to be more than a month now. That's because on Monday the Sharks announced that Hertl will be undergoing surgery on his knee. There is still no timetable for a return for Hertl, the Sharks will know more after the surgery takes place. But it's not looking good for a return anytime soon, which in turn doesn't look good for his chances to represent the Czech Republic in the Olympic Games either. At this point, Hertl is the leading candidate to win the Calder Trophy, he has been spectacular playing on the Sharks' top line with Joe Thornton and Brent Burns.