The Whites are still on the search to add their first signing of January with United looking to add a striker and a winger this month. Here, we take a look back through the archives at the last 15 senior players to walk through the Elland Road doors in previous winter windows.
1. Kiko Casilla - 2019
Arrived on a free transfer from Real Madrid last year. Has now nailed down Bielsa's number one spot at Elland Road.
2. Adam Forshaw - 2018
Cardiff made a concerted bid to land him but Leeds were equally willing to meet Middlesbrough's valuation of 3m and he accepted the offer from Elland Road.
3. Tyler Roberts - 2018
A move completed on deadline day for an upfront fee of 2.5m. Roberts arrived from West Brom on a four-and-a-half-year contract, six months before his deal expired.
4. Laurens De Bock - 2018
The left-back had pedigree in Belgium, where he had picked up medals with Club Brugge and Leeds spent 1.5m to bring him in. The transfer was not a success.
5. Yosuke Ideguchi - 2018
Leeds sorted this signing in advance of the window opening and paid Gamba Osaka 500,000 for Ideguchi's signature. Never made an appearance before his departure.
6. Mo Barrow - 2017
The Elland Road club made hard work of the 2017 window and both of their signings arrived at the death. Barrow was one of them. He hardly played.