For Cowboys fans hoping that good things happen in threes, the third good thing apparently won’t be the signing of defensive end Jared Allen. According to Mike Garafolo of FOX Sports, Allen in “unlikely” to sign with the Cowboys after Tuesday’s visit. Allen also has visited the Seahawks, and other visits are possible. The six-year Vikings and, before that, four-year Chief is looking for a “fair” contract and a “chance to win.”