One week into this lockout-shortened NHL season, there have been some surprises and a good amount of injuries to key players. Even with a truncated, 48-game schedule, it's a little early for anyone to panic or think they're in the clear as far as making the playoffs, but there are signs worth noting. * The Rangers and Flyers each are off to 1-3-0 starts, but the Flyers have a little more to worry about because of their injury situation. With left wing Scott Hartnell out four to eight weeks with a broken left foot, Danny Briere still recovering from a fractured wrist and Zac Rinaldo sidelined with a thigh laceration, the Flyers were desperate for forward help and signed 40-year-old Mike Knuble on Thursday. * Another team hit heavily by injuries is Detroit. The Red Wings entered Friday night's game against Minnesota without defensemen Jonathan Ericsson (hip), Ian White (leg laceration) and Carlo Colaiacovo (shoulder), forwards Mikael Samuelsson (groin) and Jan Mursak (collarbone) and goaltender Jonas Gustavsson (groin). After losing Nicklas Lidstrom and Tomas Holmstrom to retirement, coach Mike Babcock will have to work some early season magic to keep the team within reach in the West. * One of the most impressive teams of Week 1 was the Chicago Blackhawks, who are off to a 4-0-0 start. With Marian Hossa healthy (five goals) and Patrick Kane (seven points) on top of his game, the Blackhawks are reminding some already of their 2010 Stanley Cup team.