The left-back, signed by Slaven Bilic in 2016 for a reported £6million fee, could be offloaded by the Hammers this year.
The 25-year-old was signed by Slaven Bilic in the summer of 2016 from Olimpiacos for a fee reported to be £6million (Sky Sports News) but his time at the East London club has not come without criticism.
One of the main general grievances with Masuaku is that, though he is deemed good going forward, his defensive capabilities leave a lot to be desired, as noted by the reaction of some fans after one game this term just as one example.
West Ham haven't exactly been spoilt for choice for left-backs this term but one look at Masuaku's Premier League stats this season suggest Manuel Pellegrini may not be fully convinced with him - out of 25 top-flight games so far, he has made 14 starts (Transfermarkt).
That's before mentioning the grilling he got after the shock FA Cup loss to AFC Wimbledon - although many Hammers players didn't cover themselves in glory, he was deemed one of the poorer ones, with Football.London awarding him just 2 out of 10 in their post-match ratings.
West Ham sit 10th in the Premier League table at present on 33 points but they are closer to the bottom three (18th-placed Southampton are on 24) than the top six (Chelsea are on 50) and this summer is likely to bring about personnel changes in a bid to do better next time out.