Roman Abramovich used to send the same brutal text to former Chelsea manager Carlo Ancelotti after his team lost.
Ancelotti guided the Blues to domestic success when he was appointed by Abramovich in 2009.
He bagged the Premier League and FA Cup in the same season before being ruthlessly sacked in 2011.
A string of defeats in the 2010/11 season saw the veteran Italian manager relieved of his duties at Stamford Bridge.
And it has been revealed that the outgoing Chelsea owner would send Ancelotti a question mark after a defeat.
Sky Italia journalist Fabio Caressa explained via The Sun: "Ancelotti told me that Abramovich also texted him, always the same, especially in times when things were not going well.
"He only sent him a question mark."
Ancelotti, though, would reply with an exclamation mark.
"Instead he, the genius that is Carlo, answered him only with an exclamation mark," added Caressa.
At the time of his dismissal, which came hours after a 1-0 away defeat to Everton on the final day of the 2010/11 season, Ancelotti had the third-highest win percentage in Premier League history.
His overall record in all competitions stands at 67 wins, 20 draws and 22 losses - with his win percentage standing 61%.
Meanwhile, Abramovich has made the shock decision to sell the club in wake of Russia's invasion of Ukraine.
His trophy-laden 19-year spell is coming to an end ahead of a potential £3 billion sale.