Collingwood is hopeful key forward Anthony Rocca and an injection of youth can propel it to victory over the Western Bulldogs in their round two AFL game at the MCG.

Rocca returns from suspension to give the Magpies better structure in attack, while coach Mick Malthouse is banking on debutants Bo Dixon, Tom Davidson and Guy Richards to have an immediate impact.

Collingwood and the Bulldogs both lost last week.

Adelaide hosts Brisbane in today's other game, with two tonight - West Coast and Port Adelaide squaring off at Subiaco and St Kilda and Essendon clashing at Telstra Dome.

Round two got underway last night when Melbourne thumped Richmond 20.15 (135) to 12.4 (76) before more than 33,000 fans at the MCG.

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