Mathieu Perreault's late goal put a dent into the Sabres' lead as the Caps trail 4-1 after 40 minutes.
While Matt Hendricks and Mike Knuble wreaked havoc in the crease, Perreault corralled the loose puck and fired a wrist shot from the high slot that beat Ryan Miller. The unassisted goal cut the Sabres' lead to just three goals.
In more positive news, Washington is actually outshooting Buffalo 14-13. Also, the Caps came back from a three-goal deficit in the third period of Friday's 4-3 shootout loss to the New Jersey Devils.