Qatar v Ecuador: How Rangers missed out on signing World Cup star featuring in tournament opener
According to his dad, Leonel, Rangers were among the clubs who made his son an offer.
He said: "We moved to London when he was seven and he played a lot of street football there.
"When he was older, he got noticed and he had four offers of contracts from clubs - Chelsea, Charlton Athletic, Crystal Palace and Rangers.
"He wanted to stay in London and signed for Charlton.
"He had the opportunity to play Under 19s for Ecuador, Spain and England. I always told him he would play in a World Cup one day.
"And he has managed it with Ecuador - my country."
Sarmiento has made seven appearances for Brighton in the Premier League and has nine international caps.
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