Shane Williams will line up alongside other recent call-ups Christian Wade, Brad Barritt, Billy Twelvetrees, Ryan Grant and Rory Best on Tuesday against the Brumbies.
The Lions are protecting Wales winger George North, who reported a tight hamstring against a Combined Country XV last Tuesday.
Another man who was likely to start against Australia on Saturday, Jamie Roberts, suffered a leg injury in the win over New South Wales Waratahs yesterday.
Lions team to play ACT Brumbies: R Kearney; C Wade, B Barritt, B Twelvetrees, S Williams; S Hogg, B Youngs; R Grant, R Best (capt), M Stevens, I Evans, R Gray, S O'Brien, J Tipuric, T Faletau.
Replacements: R Hibbard, A Corbisiero, D Cole, G Parling, D Lydiate, C Murray, O Farrell, S Zebo.
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Levels will remain moderate for today and tomorrow, but, with a risk of thunderstorms on Thursday, levels will drop to low.
Plenty of warm sunshine today, however a few thundery showers are likely in the afternoon.
Scarlets coach Wayne Pivac says his side are managing wide spread burn injuries picked up against Glasgow Warriors.