Haskins suffered a high-ankle sprain based on initial analysis, NFL Network Insider Ian Rapoport reported, per sources informed of the situation. Haskins will undergo an MRI and other tests Monday to be sure, Rapoport added, and interim head coach Bill Callahan later ruled him out for the Redskins' regular season finale against the Cowboys. Case Keenum will get the start in Dallas.
Haskins suffered the injury on the first play of the third quarter against the Giants, leaving with a line of 12-of-15 passing for 133 yards and two touchdowns. Keenum replaced him, helping the Redskins reach overtime before ultimately falling, but before Haskins left, he'd shown a handful of fresh signs he's starting to put it together in the pocket.
Haskins climbed and escaped the pocket to toss an early touchdown to Steven Sims and led another scoring drive later in the half, building on a Week 15 effort in which he posted a 121.3 passer rating by improving to 143.2 before his early departure.
Haskins needn't rush back, though, in a season that means little else than developmental reps at this point. Haskins said afterward owner Dan Snyder supported the medical staff's decision to keep him out. Washington knows this is much more about the long game than a Week 17 win.