Martin Keown was renowned as a tough-tackling defender during his days at Arsenal and Everton and, in an article in the Daily Mail, he had some tough words of warning for fans of Manchester City.
The former England centre back has been a pundit in the BBC studios for much of the time since his retirement, and unsurprisingly retains a passion for the English top flight.
But Keown has underlined his fear that Sergio Aguero will be the latest superstar to depart the Premier League, if, as is looking highly likely, Manchester City finish the season without any silverware.
After faltering in the League Cup and already out of the FA Cup, City have it all to do against Barcelona next week in the knockout stages of the Champions League, while they are also playing catch up to Jose Mourinho's Chelsea side in the league, and find themselves five points behind the Blues, who also have a game in hand.
Keown says ending the season trophy-less would be bad news for City's hopes of hanging onto their talismanic Argentine, who has scored 23 goals this season.
"Over the past two summers, the Premier League has had to wave goodbye to two of its best players," the 48-year-old wrote. "Gareth Bale and Luis Suarez moved on after their clubs could not fulfil their ambition.
"If Manchester City are not careful, Sergio Aguero could be next.
"City could end the season without a trophy, losing in the last 16 of the Champions League and failing to make a domestic final or retain their Premier League crown.
"You could forgive Aguero for being tempted to move to one of the big two clubs in Spain or to Bayern Munich; somewhere he might feel he has a better chance of winning the Champions League."
Keown isn't even certain that the vast financial influence Manchester City possess could sway the former Atletico Madrid man into staying, given the unpredictable performances of recent weeks.
"Aguero is well-rewarded financially and the fans adore him, so there are plenty of reasons for him to stay.
"But for all City’s efforts off the pitch, any truly ambitious player will care deeply about results on it. The club might be building for the long term but most players are only interested in the short term. Unless performances improve and quickly, their star striker might think about leaving."
That would be a disaster for City and, to be honest, a tragedy for the entire Premier League. With the majority of English football fans preferring to see the likes of Aguero, Suarez and Bale fighting it out on British shores rather than in Spain.