I remember there being a story in the Times a few years ago when Steve Borthwick was England captain, saying that he earned £300'000 a year, which was what John Terry, the England football captain at the time, earned in 2 weeks.
If your Dan Carter then you earn 805,000 NZD a year without his endordments. Most All Blacks earn 400,000 NZD a year.
maybe £80,000 - £150,000 for an elite player, per year