That will most likely mean Dickson will be vying with 24-year-old Youngs, who is capped 33 times, for the clash with the Wallabies on 2 November, with places up for grabs in the subsequent matches against Argentina and New Zealand.
"Lee is a credit to himself and has put in the hard work," added Fotuali'i.
"Training-wise he is out there doing the extras - passing, kicking. We both do the same and feed off each other.
"We learn off each other. Well, I learn off him and hopefully he learns from me."
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