While Sinfield's renowned game management provided the backbone to Leeds' win, the 37-year-old Peacock provided what is surely the standout moment of this year's Challenge Cup so far; rolling back the years with an astonishing solo try that all-but confirmed Leeds' progression to the final.
The All Blacks repeated the feat one week later in Wellington, also against the South Africans, winning 31-17 and scoring an astonishing eight tries over the two games.
When you think of how complicated the registers at play here are, it's astonishing anyone tried to pull it off".
But it still took an astonishing five tries in the final 12 minutes to bury Salford.
Northampton's European Challenge Cup ambitions were ended in France as Clermont held on to beat Saints in an astonishing 13-try quarter-final.
Thereafter, expect him to reconnect with his astonishing form to try to claim the spoils in the lucrative PGA Tour play-offs before setting his sights on the Ryder Cup.
Spotify, a music-streaming service created by Swedish programmers that has grown at an astonishing rate, is trying to move from dependence on advertising to subscriptions.
But Hilary Benn, the shadow Communities Secretary, said: "It is astonishing Eric Pickles is trying to claim a success when over two million people on the very lowest incomes won't be getting their council tax frozen".
Outside groups have so far poured an astonishing $44m into trying to influence the outcome of the primaries, with a disproportionate amount benefiting Mr Romney, who has spent less of his own money than he did in the 2008 primaries.
Isn't it astonishing," he said repeatedly, trying to point out inconsistencies in arguments of opponents.
