Nothing other than this is probably a vital fact to miss out from your anecdote about him being a player we couldn't afford
Perhaps the fact that his style of play is also very similar to GM and Hemed and CH said frequently he was looking for something different up front might also be a clue.
He signed a new 2 year contract in August .
https://www.google.co.uk/amp/www.leicestermercury.co.uk/sport/football/transfer-news/leonardo-ulloa-signs-new-contract-377430.amp
This really was the flimsiest of rumours to get any sort of traction.
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Twitter account of a Leicester fan (a student, obviously not a journalist, clearly a wind up - look at who he follows) set up for purpose of spreading the rumour and a couple of fans repeating it word...