Williams left City in January for Hungarian club Haladas. The striker played more than 100 games for the Melbourne side from 2011 to 2016.

City have knocked off Wellington and Victory in the first two rounds and are equal top of the A-League table with Sydney FC, on six points. Their squad has been boosted by the arrival of Tim Cahill, Michael Jakobsen, Neil Kilkenny, Bruce Kamau and Fernando Brandan

"It's been quite exciting, some very good goals so far and some interesting matches," Williams told FourFourTwo.

"I'm definitely keeping my eye on it, just out of curiosity and no other reason than I enjoy football. I definitely City has a very good chance this season. I think City was tipped to win it last year, or something like that, and fell short.

"Things can change so quickly in the A-League... anything can happen. I found it promising for City but it will be very tough towards the end of the season. But I think they have a good chance."

Williams may be playing in Europe now but still keeps a keen interest in the A-League.

"One thing I look back at City, it's sad to see there's not many players that are really still there, even from a year and a half ago," he said.

"But that's football sometimes and I know the club have got goals, they want to achieve things and have big expectations.

"They're starting on a different route. I do follow them, I was there from the start of City. I've watched the first two rounds, because I do miss watching the games and I like to watch friends and old players I've played against. I like to keep tabs on that."

The 28-year old has become a regular with Haladas after his move halfway through last season. He has bagged four goals in 12 games since his arrival.

Williams said it was an easy decision in the end to leave Melbourne City.

"It was very, very easy," the former Socceroo admitted.

"It was good timing to leave so I was more than happy for it. I wasn't willing just to take anything, I did have to think about it. But once there was a decision then it wasn't hard to leave Melbourne.

"I just felt like my football career was getting a bit stale in Australia. Getting out of my comfort zone and coming here was, I think, ideal."