London (AFP) – Australia captain Aaron Finch says disgraced stars Steve Smith and David Warner will use the World Cup to restore their “world-class” credentials after their role in the infamous ball-tampering scandal in South Africa. Smith and Warner served 12-month bans following the “sandpaper-gate” incident in the Cape Town Test in March last year and Smith lost the Australia captaincy as a result. Both players are back in the Australia squad for the World Cup in England and Wales and are set to start their country’s first match of…