Heath Scotland of Carlton and Dayne Beams of Collingwood in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Luke Ball of the Magpies in the hands of a trainer during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Ben Reid of Collingwood looks on after injuring himself during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Lachlan Keeffe of Collingwood leaves the filed dejected after the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Marc Murphy of Carlton in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Kade Simpson of the Blues celebrates on the final siren of the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Heath Shaw of Collingwood marks over Marc Murphy of Carlton during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Dennis Armfield of Carlton in the hands of trainers with a knee injury during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Heath Shaw of Collingwood marks over Marc Murphy of Carlton during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Heath Shaw of Collingwood and Kane Lucas of Carlton fly for a mark during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Nick Duigan and Chris Judd head to the rooms after the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Jeff Garlett of the Blues rues a missed shot a goal during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Collingwood ruckman Cameron Wood (L) does battle with Matthew Kreuzer of Carlton during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Dale Thomas of Collingwood and Andrew Carrazzo of Carlton in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Travis Cloke of Collingwood is tackled by Mitch Robinson (R) and Michael Jamison (L) of Carlton during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Jeff Garlett of Carlton in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Carlton captain Chris Judd remonstrates with the umpires during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Jarrad Waite of Carlton and Nick Maxwell of Collingwood do battle during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Mitch Robinson of Carlton takes on Ben Sinclair of Collingwood during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Ben Reid if the Magpies in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Luke Ball of Collingwood is carried from the field with a knee injury for the second time during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Dane Swan of the Mapies is tackled by Kane Lucas of the Blues during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Dale Thomas of the Magpies and Dennis Armfield of the Blues in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Dennis Armfield of Carlton in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Harry O'Brien of the Magpies tackles Matthew Kreuzer of the Blues in the goal square during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Heath Scotland of Carlton is tackled by Chris Dawes of Collingwood during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Nick Maxwell of Collingwood looks on during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Shaun Hampson of Carlton takes a spectacular mark during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Members of the crowd run onto the field during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Dale Thomas of Collingwood catches his breath during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Nick Maxwell of Collingwood leads his team from the field after the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Michael Willson/AFL Media)

Dale Thomas of Collingwood looks for options during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Andrew Carrazzo, Brett Ratten and Jeremy Laidler of the Blues celebrate after their win in the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Chris Dawes and Tyson Goldsack of the Magpies compete for the ball against Jeremy Laidler and Andrew Carrazzo of the Blues during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Lachlan Cunningham/AFL Media)

Steele Sidebottom of Collingwood tackles Andrew Carrazzo of Carlton during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)

Andrew Carrazzo of Carlton in action during the AFL Round 03 match between the Carlton Blues and the Collingwood Magpies at the MCG, Melbourne. (Photo: Darrian Traynor/AFL Media)