Chelsea legend John Terry demanded that the Blues pulled the plug on their move for Sergio Aguero, according to stunning reports.
The 31-year-old Argentine striker left Atletico Madrid in 2011 to complete a sensational £35m to Manchester City.
But Chelsea had been interested in Aguero and were plotting a move that would have brought him to Stamford Bridge.
According to The Athletic, the Blues had made their first enquiry about the Argentina international two years before his transfer to City.
But the Blues were reluctant to splash out on the transfer fee demanded by Atletico and meet Aguero's salary demands.
However, Chelsea resumed their negotiations with the Spanish side while Carlo Ancelotti was in charge of the club.
Terry, 38, wielded significant influence at the club and the former Chelsea captain reportedly blocked the deal from going ahead.
The former England international had played against Aguero twice in the Champions League and wasn't impressed with his movement.
And the Athletic reports that Terry had passed on his criticism of the ex-Atletico striker to the Chelsea uppers.
Terry, who is now the assistant head coach at Aston Villa, wanted Chelsea to cool their interest in Aguero and make a move for David Villa.
Villa, who retired from football last week, played for Valencia at the time and established a formidable reputation in the Spanish league.
But the 37-year-old Spaniard would leave Valencia in 2010 and sign for Barcelona.
While Chelsea didn't make their initial move for Aguero after Terry's assessment, they did rekindle their interest in the Argentine striker before he signed for City.
Aguero has since become City's all-time record scorer and the sixth-highest scorer in the Premier League's history.
The City star has captured four Premier League titles, four League Cups and an FA Cup since his move to Manchester.
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