AFLX captains Jack Riewoldt and Nat Fyfe insist they'll be right to play in the experimental tournament on Friday week.

The pair have joined fellow captains Patrick Dangerfield and Eddie Betts for the AFLX Draft at League headquarters.

The Richmond forward reportedly didn't train due to knee soreness earlier in the week, but denied he's in any doubt. 

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"I don't think so, who reported that?" he joked as he arrived for the draft.

Fyfe sent a scare through the Fremantle camp earlier in the week and did arrive in Melbourne with strapping on his right elbow.

"Always create a little bit of uncertainty for people watching at home, but I'll be playing," he said. 

You can watch the realestate.com.au AFLX Draft on AFL.com.au and the AFL Live Official App from 7pm AEDT.

The captains will each select 12 players to join themselves and their already appointed deputies to form four 14-man squads.

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AFLX TEAMS SO FAR

Bolts

Patrick Dangerfield (Captain)
Luke Hodge (Vice-Captain)

Flyers

Nat Fyfe (Captain)
Marcus Bontempelli (Vice-Captain)

Rampage

Jack Riewoldt (Captain)
Patrick Cripps (Vice-Captain)

Deadlys

Eddie Betts (Captain)
Shaun Burgoyne (Vice-Captain)