Sidney Crosby has a concu sion. Another one.The Penguins released the news on their captain on Monday afternoon. He'd mi sed the defending Stanley Cup champions' preseason finale against Columbus and sat out practice on Monday for tests John Riggins Jersey .MORE: The initial thoughtwas that Crosby was sick for Saturday's game. He wasn't.It's a deeply unwelcome turn of events for Crosby, who mi sed nearly two seasons of his prime because of concu sion-related i sues before returning to form and, eventually, Casey Toohill Jersey winning the 2016 Conn Smythe trophy as playoff MVP.Conservatively, , a couple likely scoring titles and MVPs and, maybe, a couple more Cups. There's no indication that Monday's news leads to anything as disastrous but then, there' Jonathan Allen T Shirts s no indication that it won't. That's how concu sions work, and Cole Holcomb Jersey it's a fact Crosby and the Penguins know all too well.MORE: Crosby, 29, has had consecutive104-, 85- and 84-point seasons. The latter came on the heels of a miserable start to the season that saw Pittsburgh replace coach Mike Johnston Charles Mann Jersey with Mike Sullivan. The move jumpstarted both Crosby and the team and led to the franchise's fourth Cup and second with Crosby.In September, Crosby captained Canada to gold in the World Cup of Hockey and won that tournament's MVP, as well.