Etherington, who played for Tottenham Hotspur, West Ham United and Stoke City in a career spanning 17 years, retired last year.
But he still follows the English top flight intently and often shares his views on social networking site Twitter.
As the season edges towards the halfway stage over the festive period, Etherington has been having his say on who he thinks will win the Premier League title.
City are leading the way on goal difference over Leicester City after 14 games with 29 points. But just six points separate them and Liverpool down in sixth in what looks certain to be one of the most competitive seasons for many years.
'Do this and City win the title, but it won't be easy'
And he believes it will be Manuel Pellegrini's Blues who will emerge victorious as long as they keep key players fit.
Posting on Twitter, Etherington said: "Keep Silva, Kompany and Aguero fit for the majority of the rest of the season and City win the league comfortably in my opinion.
"Granted, keeping them fit won't be easy!"
Keep Silva, Kompany and Aguero fit for the majority of the rest of the season and City win the leagu... https://t.co/YvnhCfyB02— Matthew Etherington (@mattyethers) December 1, 2015
Etherington makes a salient point
Etherington was a popular player in his time at West Ham and Stoke but his opinion may not hold much weight with City fans.
But he makes a very salient point.
Because Manchester City have suffered more injuries than any of the other main Premier League title contenders this season, according to research seen by the Telegraph.
The company Premier Injuries Ltd have collated injury data from the start of the season for every team in the top flight.
The stats are compiled using four indicators, namely the number of injuries, the number of days lost, the number of serious injuries lasting more than 10 days and the number of soft tissue injuries.
And City have suffered more than any other side with 35 separate fitness issues.
So Etherington is right to suggest City’s inability to build a gap on their rivals thus far is down to the unusually high number of injuries in their expensively assembled squad.