The Edinburgh scrum-half has followed in Hastings' footsteps in captaining his country and he will now turn his attentions to emulating the legendary full back's achievements as part of a winning Lions side in Australia back in 1989.
"Mike will certainly not take a step back against South Africa," said Hastings, after Blair joined fellow Scots Nathan Hines and Euan Murray in Ian McGeechan's 37-man squad.
"He'll relish the battle and that's what will be needed out there.
"I'm delighted the tartan contingent has gone up. Three's better than two but once you're out there you become a Lion, irrespective of your nationality and the players all have to bond."