Here is what you need to know on this Monday, December 28, six days before the Washington Redskins travel to Dallas to play the Cowboys.

Five numbers of note from the 2015 Redskins

137—In 2014 the Redskins were outscored by 139 points, scoring 301 and giving up 438. Through 15 games this year their point differential is minus-2 (354 scored, 356 allowed). That is a remarkable 137-point improvement, the equivalent of nearly 20 net touchdowns in one season.

63.6—The percentage of their red zone opportunities that the Redskins turn into touchdowns. That is the sixth best in the NFL and a substantial improvement over their 2014 red zone conversion rate of 47.9 percent.

120—The number of passing yards that Kirk Cousins needs to become the Redskins’ all-time single season leader in passing yards. He has 3,990 yards and the team record is held by Jay Schroeder, who passed for 4,109 yards in 1986.

5—The number of receptions that Jamison Crowder needs to set the team rookie record for receptions in a season. Crowder has 54 and Art Monk (1980) holds the record with 58. Crowder needs just two catches to pass Charley Taylor (55 in 1964) for second place. (Note: I am using the NFL’s definition of the term rookie here. In 1985 Gary Clark caught 72 passes in his first year in the NFL but he had played in the USFL so the league does not recognize him as a rookie).

47—The number of touchbacks on kickoffs that Dustin Hopkins has 14 games into his Redskins career. It also happens to be the exact same number of touchbacks that Kai Forbath had as the Redskins’ kicker in three years from 2012-2014.

Timeline

—Today’s schedule: Players off, no availability

—Days until: Redskins @Cowboys 6; start of NFL playoffs 12

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