Day Four Recap ... Bang, crash, ker-pow! Upper hand: Do we need to bother? Australia, obviously. Shane Watson and Steve Smith made it clear from the first ball what the intent was, and immediately indulged in an orgy of scoring, Watson smashing his way to 103 from only 108 balls with five sixes. Even when he departed, the Aussies weren't done, George Bailey smashing 28 (equalling the Test record) from one Jimmy Anderson over before Clarke called them in. The carnage continued when Ryan Harris bowled Alastair Cook from the first ball of the innings, and while there was no collapse, and Ian Bell and Ben Stokes offered plenty of resistance, England left the field still needing 253 for victory with just five wickets in hand. The key man: He cops plenty of flak, but Watson played one of his best hands for Australia, stepping on the gas in exactly the manner his skipper required, striking the ball beautifully and with brutish power. Like always with 'Watto', there remained the knack for the bizarre, his run out coming after Bell had dropped a dolly mid-pitch, only for Watson to remain stationary whilst Tim Bresnan picked up the spills and threw down the wicket. But he fired with the ball also, again playing partnership-breaker with his removal of Michael Carberry. Big moment: Given the hopelessness of England's cause, it might have been a bit like shooting fish in a barrel, but Bailey's cameo at the end of Australia's innings was a few minutes of batting delight, taking Anderson to the cleaners with three massive sixes and a couple more boundaries to boot. That took Australia's lead past the 500 mark, and hammered another psychological nail into the English coffin. A freak elephant stampede had crushed all 11 Australian fieldsmen. Seriously, hard to think of anything which was going to change the course of play once Watson got going and Cook departed first ball. Which made much of the afternoon seem like a mere dress rehearsal for the official handing back of the Ashes on Tuesday. Watson. As usual, he'd come to the crease with an army of critics just waiting to call for his head should he fail. Even after his knock came the predictable cries of "flat track bully." But quick runs were the order of the day, Watson got them as quickly as humanly possible, and again he underlined his bowling value with a critical wicket when Carberry and Root looked like digging in for a while. Jimmy Anderson. The English paceman will leave these shores with a reputation a little less lofty than that which accompanied him here. He's struggled for movement and penetration the entire series, with an aggregate thus far of 7/409 at an average of 58.4, and Bailey's last-over assault was the ultimate humiliation, leaving him on the wrong end of a piece of cricket history. What does it all mean?: That sometime on Tuesday afternoon, perhaps even morning, Australia will get its hands on the urn for the first time in nearly seven years. England has again shown some belated second innings resistance, but hasn't won a single day of this series since the first, with predictable results. Australia has been methodical, at times spectacular, and will get its just reward in Perth, as it did back in its last Ashes win. And that's it from here at blog central on day four. Rohan Connolly bidding you a very good evening, and we'll see you back here a little after 1pm on Tuesday (EST).