Yes, there is no rule. But considering the team event is about putting forth your best, and giving a chance for skaters to earn another medal (at least if you're from Russia/USA/Canada) it's hardly fair to exclude a national champion from the event.
Originally Posted by seniorita
If you prefer to watch Reynolds over Chan, that's fine, but the reality is that Chan is a MUCH higher placement potential - he could win the maximum points for Canada, whereas Reynolds could lose the gold in one fell swoop. Chan messing up would be the equivalent of Reynolds best effort (unless he somehow skates his 4CC LP from last year). Chan's scoring ceiling is about 20 points higher than Reynolds and there are a lot of men in between that, including Machida, Plushenko, Yan (if China makes the final) and even potentially Brown.