Kompany has suffered no reaction to playing 90 minutes at Southampton last weekend and is in line to lead City out at Wembley on Sunday for his first back-to-back starts since October.
The City skipper and defensive talisman feels he is finally over his 11-month injury hell, which has restricted him to just eight appearances since May.
Kompany looked back to his imperious best against Saints as he scored in City’s win and Pep Guardiola says his return is great news for the Blues.
“Vincent is top quality,” said the City boss. “Anyone can discuss his quality.
“The problem has been his injuries, but finally he is back and can stay fit for us. That’s what we want – not just for Vincent – but all our players.
“I feel sorry for Manuel Pellegrini because he could not use Kompany last season.
“He’s a real central defender in his passing, but he’s more than just a central defender – he has a great passion, vision and he’s dangerous in set-pieces.
“He wins duels, finds the space to play the ball through and hopefully, he can stay fit for us for the remainder of the season.”
Kompany, is expected to partner John Stones against Arsenal and is thrilled to be back for the run-in.
“I know that such moments are worth working for,” said the Belgium captain. “If I had to work 15 years just to have one moment like this, I would do it, not a problem. I’m really happy and I want to stay in there.
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“When this happens, I feel I’m giving something back to the fans. I feel I’m finally giving something back to the team as well and that’s what you see in those moments.
“I love the FA Cup.”