After it has been announced today that Leeds have finalised the signing of Japan international Yosuke Ideguche by Phil Hay on Twitter, the Whites have added to their already-impressive centre midfield options.
However, to show they are serious promotion contenders, the January transfer window has to address some of Leeds' problems.
Here are three positions Leeds need to add to in January.
Have Leeds really replaced Chris Wood?
The £15m man scored a whopping 27 league goals last term, but his sale to Burnley at the start of this season left Leeds fans crying out for a like-for-like replacement. Leeds manager Thomas Christiansen signed German target man Pierre-Michel Lasogga from Hamburg on a season-long loan, and after bagging two on his debut in a 5-0 victory against struggling Burton Albion, Leeds looked like they had the real deal.
However, the goals have now dried up and the German is currently enduring a spell on the sidelines through injury. 19-year-old Jay-Roy Grot was also signed to bolster United's attacking options, but a lacklustre goalless start from the teenager has raised questions over the Whites' transfer policy.
Leeds may need a proven Championship scorer, and if they want to finish in the play-off spots, they need one soon.
2. Left Back
A local lad, Leeds' Charlie Taylor, was playing for his boyhood club until leaving for Burnley this summer. Making darting runs and claiming great assists last season, Taylor offered Leeds an attacking outlet from full-back, however the void that Taylor has left has not been filled by Christiansen.
Loanee signing Cameron Borthwick-Jackson has only featured for Leeds on one occasion in the league, and while a cult hero at Elland Road, Gaetano Berardi is simply not on the same level as former teammate Taylor.
To match their defensive strength of last season, Leeds need to effectively replace him with another attacking left-back who can not only stop the team conceding goals, but help them score them also.
After selling one of last season's standout performers in Rob Green, German recruit Felix Wiedwald had big gloves to fill. However, the former Werder Bremen man has been in and out of the team due to his mistakes, and was replaced by Andy Lonergan during November.
Wiedwald's howler at QPR last weekend almost cost Leeds their first victory in London since March 2015, and it is obvious that Leeds cannot rely on their 'keeper. Even Lonergan's brief foray between the sticks in November was marred by bad mistakes against Brentford and Wolves.
The troubles of the two 'keepers shows how badly Leeds miss former England international Rob Green, and how much Leeds need a new number one in January.
Leeds currently sit in 8th spot in the league, so if they want to mount a serious promotion push, their activity in the January transfer window is imperative to their final position in the Championship.