Crosby is still at #3-4 on the list to recovery and has to remain symptom-free to keep progressing. Awesome news nevertheless.
1. rest until asymptomatic (physical and mental rest) 2. light aerobic exercise (e.g. stationary cycle) 3. sport-specific exercise 4. non-contact training drills (start light resistance training) 5. full contact training after medical clearance 6. return to competition (game play) There should be approximately 24 hours (or longer) for each stage and the athlete should drop back to the previous asymptomatic level if any post-concussive symptoms recur.
http://sports.espn.go.com/nhl/news/story?id=2251559 The initial report on ESPN.com stated that Lemieux was going to be kept overnight for observation and obviously there'll be no immediate word on his playing future without a full diagnosis.