The players completed the circuit in two groups and moved from activity to activity with little time for a break. It tested their limits and each were exhausted at the conclusion of the session.
View photos from the circuit below.
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The facial expression of Grant Birchall tells the story, the circuit is hard work.
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The skipper, Luke Hodge looking determined as he concentrates on this set.
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Cyril Rioli flexes his muscles as he throws the medicine ball to his partner.
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International Rookie Shem Tatupu looks like he's already physically strong enough to step into the AFL.
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One of the toughest activities of the circuit, Josh Gibson battles through push-ups with weights.
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Jordan Lewis works up a decent sweat.
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The returning Ryan Schoenmakers has worked hard this pre-season and could be headed for an early season return.
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Last year's Coleman Medal winner, Jarryd Roughead in action as sweat drips from his face.
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A very fit looking Matt Suckling in action with the medicine ball.
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Rioli in action as he completes the push-ups with weights.
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Bradley Hill grabs a much needed drink before getting back into the circuit.
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Luke Breust concentrates as he balances and throws the medicine ball to his partner.
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Heading into his fourth AFL season, Paul Puopolo is looking fit and ready to spend more time in the midfield.
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Midfielder Liam Shiels grimaces as he completes his final activity of the circuit.