Millwall have agreed a deal with Hull City for Jay Simpson, skysports.com understands.
The former Arsenal striker joined The Tigers last year on a three-year deal.
But now he is being lined up for a move to The Den, with Kenny Jackett looking to make an impact on deadline day.
The 22-year-old, who can play as a striker or in midfield, is now set to seal a loan move to Millwall - with a view to that deal becoming permanent in January.
Millwall are believed to be looking at concluding a number of deals on deadline day, with Bournemouth's Liam Feeney also in their sights.