The reliable news outlet claims that Dieng, 24, could leave Loftus Road on a free transfer this summer with his contract expiring at the end of next month.
However it is understood that English Championship side QPR have offered the 6ft 4 (transfermarkt) colossus a new deal in a bid to get him to stay amid interest from Rangers, Shrewsbury, Vitesse, Strasbourg and Minnesota United.
Good move for Rangers?
As Foderingham could be on his way out of Ibrox in the summer, Gerrard and director of football Mark Allen might need to find a replacement who can provide back-up to Allan McGregor.
Dieng spent this season on loan with both Stevenage and Dundee and despite their relegation from the Scottish Premiership, the Swiss-born shot-stopper had quite an impressive spell at Dens Park.
He did face a lot of shots but Dundee only lost 1-0 to Celtic with him inbetween the sticks and he also kept a clean sheet in the penultimate game of the season against Livingston.
Dieng, on a free transfer, could be a good piece of business by Gerrard and Allen.
This is Futbol rating 6/10
Likely to happen?
Rangers will only need Dieng if Foderingham leaves and they also appear to be facing a lot of competition for his signature.
QPR could also get him tied down to new terms at Loftus Road, so at the moment, it is difficult to say that he is bound for Ibrox this summer.
This is Futbol rating 2/10