The Sun claims Tottenham are tracking the West Ham left-back, along with Borussia Dortmund and Fiorentina.
And Spurs' interest is said to stem from the prospect of losing Danny Rose after the Champions League final, with Masuaku a potential replacement.
It is perhaps fair to say that Masuaku is far from universally popular at the London Stadium, although he has impressed during an extended run in the side of late and completed last month's win at Tottenham's new home.
So what do those of a West Ham persuasion make of the speculation? This is what they're saying on Twitter...
Get rid— wayne morris ⚒ (@WayneMorris57) May 14, 2019
Sell— Brad WHUFC (@BradHellyer1) May 14, 2019
Sign a new lb first then they can have him— Joe (@Joeobrien44) May 14, 2019
Spurs ain't the answer if you leave don't insult us— David McIntosh (@waldairbooks) May 13, 2019
Spuds want him £30million or Borussia Dortmund £15— ⚒RUSTYHAMMER⚒ (@DeanoTy) May 14, 2019
Minimum £20m but NEVER sell to Spurs no matter what the price (they created the situation, even though they dont care about us).— David Clerihew (@DavidClerihew) May 14, 2019
You just know he's gonna be a world beater at whatever club he goes to next without a shadow of a doubt. If keep him, he's got serious promise.— ⚒️ (@LewiBizzle) May 14, 2019
He windsme up he’s either brilliant or shocking. No in between— martin tyzack (@MTyzack) May 13, 2019
He’d be class as a lwb— Billy Barnes (@BillyB86) May 14, 2019
Masuaku moved to West Ham from Olympiacos three years ago and has played 75 time for the Hammers, scoring or assisting seven goals.
The 25-year-old is about to enter the final season of his deal, although West Ham have an option to extend that by a further 12 months, according to the Sun.
Could Masuaku quit West Ham for Tottenham?
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