During this arduous Ashes tour England have been mauled by Mitchell Johnson, routed by Ryan Harris and picked off by Peter Siddle. Now, after day three in Melbourne, they've also been nullified by Nathan Lyon.
The off-spinner had played a supporting role during the rest of the series, doing a solid job to hold down one end for his captain while picking up the odd wicket along the way.
Crucially, England have proved unable to knock him out of the attack. From around the wicket to the right-handers (a line Kevin Pietersen branded "negative" in an interview with Sky Sports before play got underway) he was able to join up the dots, all the while allowing Australia's seamers to rest and recover.
In the fourth Test, though, he took centre stage with his maiden five-wicket haul on home turf, his efforts helping see England go from 65-0 to 179 all out.
He started out by tempting Ian Bell to tamely chip a catch to Johnson at mid-off just two deliveries after Joe Root had run himself out with a suicidal single to the same fielder.
The 26-year-old then won a battle of patience with Ben Stokes, tempting the all-rounder into hitting straight down the throat of Steve Smith, who had been pushed back halfway to the boundary at mid-off, before then dismissing Tim Bresnan and Stuart Broad in the same over.
Yet the best was left until last, Pietersen's attempts to get to 50 in style only resulting in Harris taking an excellent catch in the swirling wind out in the deep.
The dismissal of Broad, caught at slip by captain Michael Clarke for a duck, was a landmark moment for Lyon, as it was his 100th victim in Test cricket. Only 34 others Australian have achieved the feat.
The milestone is a reward for perseverance and hard work, something Lyon knows all about from his time spent on the groundstaff at the Adelaide Oval.
So often regarded as not quite good enough, so often left out in favour of more fashionable spinners (remember the national selectors preferred Ashton Agar at the start of the Ashes series in England during the summer), Lyon now seems an integral part of this Australia side.
He's also getting plenty of practice at singing the victory song. Another 201 runs on day four and the New South Welshman will get another chance to perform at the famous MCG. Never mind sleeping tonight, the Lyon could be singing tomorrow instead.