The Australia A fast bowlers - especially Starc - tried to give nightwatchman Tony Palladino a working over with some short-pitched deliveries (including this one) at Derby on Saturday morning

Wayne Madsen drives this delivery from Bird straight down the ground for 4

Tony Palladino is watchful in defence at the County Ground on Saturday morning

Usman Khawaja drives this Starc delivery for 4 through extra cover. Khawaja scored an unbeaten half century against his fellow Australians

Tony Palladino hoists this Nathan Lyon delivery towards the mid-wicket boundary for 4 at Derby on Saturday

Tony Palladino began to take the attack to the Australia A bowlers on Saturday, having passed fifty and sensing that a maiden century was a possibility. Here, he smashes this delivery from Johnson for 4

Tony Palladino strokes this delivery into the offside and moves to a maiden first class century from just 113 balls having come into bat as the nightwatchman on the previous evening. Palladino scored 16 fours in his hundred against Australia A

Palladino acknowleges the applause for his hundred

Tim Paine edges this delivery from Footitt as early Australia A wickets fall in their second innings following an enterprising declaration from Derbyshire

Chris Durham takes a safe catch to dismiss Paine

Mark Turner induces an edge from Forrest and Australia A are about to be reduce to 58-3 in their second innings

Forrester watches as Khawaja plucks the ball in mid-air as Durston goes for the same catch

David Wainwright took his match tally to 5 when he took two wickets in the Australia A second innings including this dismissal - clean bowled - of Mitchell Johnson

Something of a rarity - Usman Khawaja in bowling action at Derby on Saturday

David Wainwright in action on Saturday when he took 2-23 against Australia A

Man of the Moment, Tony Palladino, pictured at the close of play with the bat that brought him his maiden first class century

Tony Palladino's innings montage from his century against Australia A on Saturday