Louis van Gaal brought Marcos Rojo to Old Trafford from Sporting as he looked to bolster his defensive options.
But Mauricio, 26, has confirmed that the Red Devils were also interested in signing him during the recent transfer window.
“They [United] made contact with my agent, Carlos Goncalves,” Mauricio told Esporte UOL.
“But I am a centred, focussed and very calm person.
“There were no guarantees. Here at Sporting, people like me very much and I am very happy.”
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