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BIS warns 'pressure points' putting global economy at risk
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Cycling industry bets on smart bikes to boost sales
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In Idaho, the next generation of US nuclear reactors nears reality
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Algeria and Austria reach World Cup knockouts after 3-3 thriller
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Africa the winner of expanded World Cup amid mixed fortunes for minnows
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DR Congo advance but Iran out as wild World Cup group stage wraps
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Asia's vendors grapple with rising costs of ever-present plastics
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Austria and Algeria reach World Cup knockouts after 3-3 thriller
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Messi scores again as Argentina head into World Cup last 32 on a high
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Wissa proud to deliver World Cup joy to war-torn DR Congo
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China's bull wrestlers fight to keep tradition alive
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South Korea's 'dismal' World Cup ends in group phase
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England top group to set up DR Congo World Cup clash, Portugal held
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Colombia and Portugal through to World Cup last 32 after thrilling draw
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England moving on at World Cup but questions linger
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Wissa sends DR Congo into World Cup last 32 clash with England
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Venezuela quakes kill 1,400 as time running out to find survivors
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A painful wait by a pile of rubble in quake-hit Venezuela
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Australia World Cup goalkeeper Patrick Beach has beach named after him
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Tuchel delighted to have Bellingham in 'sweet spot' for England at World Cup
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Bellingham says 'job done' but England must improve at World Cup
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Australia boosts shark-spotting drone coverage at Sydney beaches
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Trump threatens to annihilate Iran after new exchange of attacks
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Scotland boss Clarke resigns after World Cup exit confirmed
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Scotland boss Clarke resigns after World Cup exit confirmed: official
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Kane, Bellingham on target as England win World Cup group
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Kane, Bellingham on target as England clinch top spot
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Croatia battle past Ghana to sew up World Cup Last 32 spot
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Bellingham, Kane score as England beat Panama to reach World Cup last 32
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US, Iran clash, putting fragile deal under growing strain
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Canada's Davies 'available' for historic knockout clash
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Ryu takes one-shot lead over Henderson at Women's PGA Championship
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Hovland seizes one-shot PGA Travelers lead over Scheffler
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Jangoo and Chase put West Indies in control against Sri Lanka
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Mauvaka double inspires Toulouse to fourth-straight Top 14 in storm-impacted final
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World Cup star Gakpo requests privacy after death of unborn son
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Solidarity, sadness among Venezuelans made destitute by quake
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Aid planes landing at partially reopened Venezuela airport after quakes
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Iran says US violated peace deal as both sides attack
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Spain's Williams hits out at Uruguay over World Cup injury
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'We need help': Venezuelans furious at slow official response to quakes
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World's largest particle smasher halts for upgrade to boost hunt for dark matter
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Venus Williams relishes 'very special' Wimbledon reunion with sister Serena
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Ex-Olympic medallist Canderloro elected French Ice Sports chief
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Ravindra leads New Zealand rally in England finale after Archer's double strike
Mercedes boss Wolff warns 'no magic fix' for Melbourne
Lewis Hamilton's hopes of winning a third Australian Grand Prix were handed a reality check by Mercedes boss Toto Wolff Thursday, who warned there was "no magic fix" to the problems plaguing his car.
The once-dominant Silver Arrows have fallen well short of Red Bull and Ferrari in the opening two races of the season following a series of design changes to comply with new regulations for the 2022 season.
A key problem has been porpoising -– bouncing at high speed -– and Mercedes have been working round the clock to remedy the issue at their British base since the Saudi Arabia Grand Prix two weeks ago.
But while Mercedes, who have won the last eight constructors' world championships, are tipped to introduce a new rear wing in Melbourne, Wolff warned they still had a lot to do.
"We are in a learning race and the first two weekends have shown we still have plenty to learn," he said.
"At the moment, our track performance is not meeting our own expectations, but everyone at Brackley and Brixworth is focused on understanding the problems and finding the right solutions.
"There won't be a magic fix for the next race weekend, but we're pushing to steadily bring gains over the upcoming races, to hopefully move us closer to the front of the pack.
"Until then, we need to maximise each opportunity and make the most of the package we have."
At the opener in Bahrain, seven-time world champion Hamilton finished third behind the Ferrari pair of Charles Leclerc and Carlos Sainz, but only after Red Bull's Max Verstappen and Sergio Perez retired in the closing stages. Hamilton's teammate George Russell was fourth.
In Saudi Arabia, Hamilton managed only 10th, while Russell fared a little better in fifth, but still considerably off the pace of the Ferraris and Red Bulls who filled the top four.
Despite the frustrations, Wolff praised his drivers' patience.
"There are various challenges ahead of us, but that's something we relish and is when a team really shows its true spirit," he said.
"Lewis and George are making an important contribution to the overall effort, providing feedback, spending time in the simulator and working together to help push us forward."
The early-season problems have left Mercedes trailing Ferrari by 40 points in the constructors' championship after two grands prix, with Hamilton in fifth place in the drivers' standings, 29 adrift of leader Leclerc.
Hamilton has claimed pole position eight times in Melbourne, including the last six. He won in 2008 and 2015.
W.Stewart--AT