The Queens Park Rangers boss could be in the market for a new striker this summer.
Queens Park Rangers manager Ian Holloway
R's boss Ian Holloway is said to be closing in on the signing of Lions winger Fred Onyedinma, a player he managed during his 15 months at The Den. But why stop there? After all, Onyedinma isn't the only ex-Lion impressing in this season's EFL campaign.
And with goals coming at a premium for QPR's front men this season - Idrissa Sylla has the most of all with nine - a new one could be on the agenda.
Though competition for the 25-year-old is set to be fierce, the R's can perhaps rely on the Holloway effect to hoist them to the front of the queue.
Marquis may have only played a handful of games under the Loftus Road boss in Bermondsey, but the Lewisham native still cited Holloway as one of his reasons for signing a new deal there in late 2013.
"The new gaffer has shown real faith in me since he arrived, and now with my injury niggles behind me I'm looking forward to the rest of the season," Marquis told Sky Sports at the time.
"It has really been exciting here since Ian Holloway came to the club, and the fact that he obviously believes in me is a real boost.
"I know I may have to wait for my chance to break into the team but I'm determined to keep working hard and grab the opportunity when it comes."
John Marquis in action for Doncaster Rovers
By the time Marquis returned from his spell at Northampton, however, Holloway was gone. And a move to QPR could see the pair make up for lost time.
Would Marquis be a good signing for Queens Park Rangers?