Things have been rolling for Corey Crawford as of late. After all, only letting in two goals in your last four games is pretty impressive - and having three of those four be shutouts is, well, pretty good.
Crawford has stopped 88 shots in those three shutouts, or 112 total of the 114 he's faced in his last four starts. It's nice the Blackhawks have been (mostly) scoring a lot of goals for him in the meantime, but he hasn't quite needed the offensive support!
In fact, no Chicago goaltender has needed the offensive support quite like this since the 1973-74 season when, in February of '74, Tony Esposito had three shutouts over four games.