GOLD Coast midfielder David Swallow is in doubt for Saturday’s clash against Port Adelaide in China with a calf issue.

The former No.1 draft pick joined his teammates for a light run at Jiangwan Stadium on Friday morning, but had his right calf heavily bandaged.

He didn’t appear to move that well, limping at times throughout the session, which lasted over an hour in 30-degree heat.

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Swallow copped a knock to his calf in last weekend’s loss to Melbourne and spent most of the last quarter on the bench.

After the game he was seen with ice on his calf and his knee.

Coach Stuart Dew told reporters on Thursday that Swallow had recovered well and would face the Power on Saturday.

If Swallow doesn’t pull up well after Friday’s session, young midfielder Will Brodie is likely to replace him in the team.