Reds coach Ewen McKenzie is set to name his first unchanged 22-man squad of the season when he unveils Queensland's team to play Saturday night's Super Rugby final against the Crusaders on Thursday.

Luke Morahan was the only potential change to the squad which defeated the Blues 30-13 last weekend but the dangerous winger has fallen short of overcoming a torn hamstring.

"He's struggling," McKenzie told AAP.

"He's come a long way but he's just getting back into training and he hasn't done enough."

Only once before has McKenzie named the same starting 15 in a season where he has used 38 players.

In a good omen for the Reds, that was when an unchanged side defeated the Crusaders 17-16 in an epic round 15 match in front of a sold-out Suncorp Stadium.

The final will also be a sell out after the remaining 25,000 general sale seats were snapped up on Wednesday morning within 45 minutes.

A capacity Brisbane crowd of 52,000 would break Australian rugby's provincial attendance record of 49,327, set in 1907, when NSW played the All Blacks at the SCG.

Morahan's inability to overcome his injury is likely to see former Melbourne Storm three-quarter Will Chambers retained on the bench, putting him in line for a piece of history.

A Reds win would see Chambers join Crusaders lock Brad Thorn as the second player to earn the NRL-Super Rugby title double.

All Black Thorn won three NRL premierships for the Brisbane Broncos (1998, 2000, 2006) before being a part of the Crusaders' 2008 final victory over NSW.

The Crusaders will also name their team on Thursday morning with most concern held over halfback Andy Ellis who sustained a shoulder injury in the 29-10 semi-final win over the Stormers.

Winger Sean Maitland (foot) was rested from training on Wednesday as a precaution while reserve lock Luke Romano joined his teammates after being quarantined in South Africa on Monday due to chicken pox.

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