Dieng came to QPR back in 2016, but it was not until this season before he made his breakthrough at the club.
He has spent the best part of the last five years out on loan, appearing for Whitehawk, Hampton & Richmond Borough, Stevenage, Dundee and Doncaster Rovers.
However, following a difficult season for regular number one Joe Lumley, Dieng got his chance in the Rs’ starting XI and has been a revelation.
His performances have earned him a call up to the Senegalese national team, and he is one of the leading candidates for QPR’s Player of the Season award.
In January, reports claimed that Premier League trio Arsenal, Crystal Palace and Leeds United were all looking at the 26-year-old.
Now, the Sun have said that West Ham are set to join the race this summer, as relayed by West London Sport.
The Hammers will likely be in the hunt for a new goalkeeper soon. First choice goalkeeper Lukasz Fabianski is one week away from his 36th birthday. Despite this, he was awarded a one-year extension last month.
Meanwhile, back-up stoppers Darren Randolph and David Martin are 33 and 35-years-old respectively.
Dieng would provide sufficient cover for Fabianski for next season and is young enough to potentially be his long-term replacement.
Read also: West Ham could move for Ross Barkley this summer.