West Indies v Australia, 2nd Test, Port-of-Spain, 4th day April 18, 2012

Shillingford shows his doosra

ESPNcricinfo presents the plays of the day from the fourth day in Port-of-Spain where rain had a major impact

Dual drop of the day

Fidel Edwards has been short of fortune during this Test and his dry run continued in the fifth over of Australia's second innings. Bowling a short of a length delivery that cramped Ed Cowan for room, Edwards coaxed an outside edge as the opener tried to force off the back foot. The ball flew straight to Darren Sammy at slip, who dropped it. The ball's downward path was not without a chance of a second grab, however - Carlton Baugh dived across but, unfortunately in keeping with his untidy work behind the stumps all match, was unable to close his gloves around the ball in time.

Near run-out of the day

Cowan received a rare loose delivery from Kemar Roach on 9, a full toss that he pushed wide of mid off and set off for a single. Misjudging the speed at which the ball reached Edwards, Cowan left Ricky Ponting in dire danger of being run-out for the second time in as many Tests, again the victim of his partner's overzealous search for runs. So far short was Ponting that he appeared to give up the run, letting Edwards' throw decided whether or not he would continue batting. However Edwards was narrowly off target with his return, and Baugh had not made it up to the stumps in time to retrieve it and complete the run-out.

Doosra of the day

Shane Shillingford has so far shown accuracy and persistence in Trinidad, and on the fourth day he also showed he was patient enough to hold back a variation for an entire innings. For 49 overs in the first innings and eight in the second, Shillingford kept more or less to off breaks, relying on the natural deviation and variation to be found in a co-operative Port-of-Spain pitch. But in his ninth, Shillingford revealed a top-spinner/doosra that gripped and bounced significantly, beating the outside edge of Ponting's bat and thudding into his thigh. Happy with how it had come out, Shillingford bowled another before the over was done.

Daniel Brettig is an assistant editor at ESPNcricinfo. He tweets here