No worries over Brown: Rodgers
Parkhead skipper Scott Brown will be free to face Gers at Hampden after the Hoops challenged another of Robertson's weekend calls.
The midfielder was dismissed moments after the penalty row having caught County poacher Liam Boyce with a late tackle.
But even with their treble hopes resting on the semi-final showdown, Rodgers has no concerns over his captain's temperament going into the powder-keg derby clash.
"It's very important to have him available because he's a real catalyst for the team," said the Ulsterman.
"I didn't think he should have been sent off last weekend. We challenged the red card because we felt it was a yellow and also because of the consistency of the decision.
"We had the same referee who made the yellow card decision against Motherwell when Kieran Tierney had a really bad tackle against him - Scott's was nowhere near that.
"He has played over 50 games for me this season and has been absolutely brilliant.
"I have absolutely no qualms about him playing on Sunday. He's played in countless big games for us under pressure. His temperament this season has been absolutely first class.
"He will look to be aggressive this weekend, he will look to dominate as he has always done but in the main he has kept it under control very well this season."
Tomorrow's game will see Rodgers go up against new Gers boss Pedro Caixinha for the first time. But while he revealed they have already come face to face after meeting at Thursday night's Under-17's Glasgow Cup final clash between Celtic and Rangers, the former Liverpool boss was not giving much else away.
"I met Pedro last night and we had a good chat at the kids' game," he said. "It was a private chat between us. But he will enjoy Glasgow as I have done.
"He will want to put in some of his own ideas to his team.
"He's brought in some of his own concepts and had a good start - but what was said after that is totally private."