According to reports, Millwall want to re-sign striker Morison, who has already had two spells at the New Den during his career.
Morison, who has scored 48 goals during his two previous spells with the Lions, only registered two goals in 26 league appearances for Leeds in the Championship last season.
Leeds have already sold Billy Sharp to Sheffield United this summer, but have invested heavily in strikers with the £2m signing of Chris Wood from Leicester and the £300,000 capture of Lee Erwin from Motherwell.
The Whites would be looking for a nominal fee for Morison, with Neil Harris' Millwall the current favourites to land the former Wales international.
Steve Morison transfer history;
| From | To | Date | Fee |
|---|---|---|---|
| Stevenage | Millwall | 01 Jul 2009 | £130k |
| Millwall | Norwich | 06 Jun 2011 | £2.0m |
| Norwich | Leeds | 31 Jan 2013 | Undisclosed |
| Leeds | Millwall | 28 Jun 2013 | Loan |