By Andrew Gould The Dallas Cowboys face the Philadelphia Eagles in a mammoth Sunday Night Football matchup. Jerry Jones knows beating their NFC East rival won’t be easy. During Friday’s radio interview on 105.3 The Fan, the Cowboys owner said he’s “nervous” ahead of the Week 14 matchup. “We recognize what an outstanding team [Philadelphia is] — their record speaks for itself … and they’re that kind of team,” Jones said. “For us to go out here and beat them, it’s going to have to be a Herculean effort. It can be [done]. We can do it, of course. And if we do, we’ll have the uplift, and we’ll h…