4 – Number of shutouts the Capitals have registered in their last five wins over Pittsburgh, dating back to 2011 and including Saturday night’s whitewashing. (Put another way, the Pens have won nine of their last ten games against the Caps in which they managed to score.)
Prior to that February 6, 2011 blanking (authored by Michal Neuvirth), Washington hadn’t shutout Pittsburgh since April, 2001 and hadn’t done it in the regular season since 1991.