Having spent over a decade at Old Trafford, Rio Ferdinand remains a vocal supporter of the Red Devils even after turning to punditry in recent seasons.
However, over the past few weeks, the former England centre-back has started to question a few decisions that have been made at the Red Devils.
Last week, he tweeted out a message of support for Michael Carrick who, in his eyes, has been underused by consecutive United managers. Now, he has admitted he remains shocked about one player sale sanctioned by the club back in 2015.
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Writing in his column for the London Evening Standard, the 81-cap England international made it clear that he still can't believe the cut-price deal that saw United part ways with a proven goalscorer.
"Spurs will have to watch out for my former Manchester United team-mate Javier Hernandez because he is a potent striker who takes his chances," Ferdinand wrote when previewing Spurs' Champions League fixture against Bayer Leverkusen this week.
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"I still can’t believe that he joined Leverkusen from Manchester United for just £7.3m last year.
"When you look at the market today, it was an unbelievable bit of business by Bayer Leverkusen."
In five years as a United player, Hernandez had a pretty impressive goals-to-games ratio, bagging 59 goals in 157 total appearances.
However, despite reaching double figures in three of his four full Premier League campaigns, the diminutive Mexican was, first, shipped out on loan to Real Madrid by David Moyes before, ultimately, being sold to Leverkusen in August 2015 by the Louis van Gaal regime.
Having gone on to score 33 goals in just 53 games for the German club, the £7.3 million price tag certainly seems like a bargain, especially when you consider Hernandez is still only 28-years-old.
Given the current situation at United under Jose Mourinho, there must be a lot of Red Devils supporters who echo Ferdinand's sentiments just now.
The Old Trafford club has gone three Premier League games without finding the back of the net and, in their 0-0 draw against Burnley this past Saturday, they managed a frankly ridiculous 37 shots at the newly promoted club's goal without getting on the scoresheet.
With Wayne Rooney slumping, Marcus Rashford still developing and Zlatan Ibrahimovic going through one of the most baron runs of his illustrious career, Mourinho must wish he could call upon a player with the predatory instincts of Hernandez.
Or, at worst, the Portuguese boss would certainly have appreciated being able to still dip into a more lucrative fund than the £7.3 million United brought in from the Mexican's sale last year.
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