Blackhawks captain Jonathan Toews suffered an apparent upper-body injury in his team's 2-1 lo s Wednesday to the Sharks. He did not return. Midway through the second period, Toewsgottangled up with the Sharks' Joe Pavelski while taking a faceoff in Ryan Suter Jersey the Blackhawks' defensive zone and seemed to tweak something on the play. Toewsgot back to his feat and continued on, but he labored through the rest of his shift before heading to the locker room at the 11:17 mark. MORE: The Blackhawks announced early in the third period that Toews would not return to game, but did not elaborate on the nature of his injury. Here is Toews' fall. John Dietz (@johndietzdh) Coach Joel Quenneville told reporters after the game the injury was to the upper body. Jonathan Toews hopefully "nothing serious," Q says. Mark Lazerus (@MarkLazerus) Chicago also saw third-line center Marcus Kruger leave the game at the end of the second period, po sibly at the request of the NHL's concu sion spotters. Kruger returned forthe third period. Q said Kruger was the first time the had a spotter take out a player. "Everybody, I think, was trying to do the right things." Mark Lazerus (@MarkLazerus) Already thin on depth, the Blackhawks can ill afford an extendedabsence of their captain or Kruger. If both were to mi s time,Artem Anisimovand Vince Hinostrozawould become their only healthy true centermen. Toews was sixth on the team with 12 points in 20 games entering Wednesday. Jared Spurgeon Jersey