Penguins superstar Sidney Crosby is out indefinitely with concussion-like symptoms. Crosby said Monday that he noticed a recurrence of the problems that sidelined him for more than 10 months earlier this year following a 3-1 loss to Boston last week. "Not (feeling) bad. I'm not happy about watching," Crosby said. "But I have to make sure with these sort of things that I'm careful and making sure I'm 100 percent before coming back. No timetable."