"I felt very tired after the (Birmingham) game as I wasn't really ready to return. I'd done very little training in the three weeks beforehand," Gerrard said.
Related ArticlesRafael Benitez: I'll quit if Liverpool sell TorresBenitez sets record straightChasing the dream will take clubs to the wallBenitez keen to kickstart season with City winIreland rules out Republic recallBrazil puts winning ahead of beautiful game"It took me two or three days to recover from that game but I have spent the past week doing strengthening work. I'm feeling a lot better now. I'm looking forward to the weekend. There's no mental hurdle to cross.
"I've had a problem in my groin that has taken a while to get over, but I'm just relieved the second injection seems to have done the trick.
"It's a case of so far so good and the aim now is to make sure I get a good week's training under my belt so I'm ready for the game with City."
Gerrard is anxious to help Liverpool reignite their campaign with the Merseyside club currently sitting seventh in the table having suffered five league defeats already this season.
The club are also facing the prospect of an early exit from the Champions League and are already out of the League Cup.
"Some of the lowest points in my career have come about when I have had to miss big games for Liverpool and England through injury," Gerrard told the club's website.
"It's never easy when you have to sit out games against Manchester United or trips away from home in the Champions League.
"If the lads are winning games and doing well, it makes the pain a bit easier so obviously the last couple of weeks have been extra frustrating.
"But I'm feeling good now, a lot stronger than before and it's just a question of getting my match sharpness back now. That is the most important thing."