With a little over a week left in the summer transfer window, clubs across Europe will be desperate to make a significant splash before it's too late.
There are, of course, those who did their business early in the window. These sides are currently lording it over their rivals, schadenfreude-style.
This article will take a look at some of the biggest clubs on the continent and assess where they still need to reinforce.
Time may be running out fast, but you never know what can happen in the run-up to deadline day.
The Red Devils' search for a central midfielder has so far come up short.
Both Cesc Fabregas and Thiago Alcantara have elected not to move to Old Trafford, arguably embarrassing United in the process.
It may take slow-coach David Moyes another week to actually sign someone, but sign someone he must.
There are good options out there, but limited time means the Scotsman may have to overpay for the likes of Luka Modric or Marouane Fellaini.
The need for a dynamic presence alongside Michael Carrick is paramount.
Italian giants AC Milan are currently in the market for a new defender.
According to Football Italia, that search has led them to Paris Saint-Germain and 23-year-old Mamadou Sakho.
The French centre-back only has a season remaining on his contract, and it is believed PSG are open to negotiating.
Charles Perrin of British tabloid the Express quoted France national team boss Laurent Blanc as saying: "It is true that Mamadou expressed his desire to find a new club."
A deal is reportedly close.
Liverpool tried to rob Arsenal blind for Luis Suarez, but that's because they knew how desperate the Gunners were for a striker.
Arsene Wenger is coming under increasing pressure for not making any significant additions to his squad this summer.
The side were well beaten by Aston Villa at the weekend, highlighting the need for reinforcements.
The Telegraph's Jeremy Wilson claims Real Madrid forward Karim Benzema is a legitimate target for Arsenal.
The quoted price of £40 million may seem a little steep, but sometimes you just have to pay the piper.
New Barcelona manager Gerardo Martino has told reporters he is in no rush to sign a new centre-back, as reported by Elena Gyldenkerne of Reuters.
The Argentine boss says Barca are willing to wait until January.
Heaven knows why.
The club has so far been unsuccessful in reinforcing at the back, as the potential signings of Daniel Agger, David Luiz and Thiago Silva have failed to materialise, as per Mirror Football.
The Blaugrana will always score goals, but sloppy defending may cost them come next May.
Jose Mourinho could almost be accused of being lackadaisical in this summer's transfer window.
The Portuguese boss hasn't made the type of marquee signings fans of the Blues expect.
Wayne Rooney seems to be Chelsea's sole remaining target, but he will not come cheaply.
According to Mourinho himself, the Blues will wait until after their Premier League clash with Manchester United next Monday to lodge another bid for Rooney, according to BBC Sport.