David Moyes may well be in good spirits after his Manchester United side beat Premier League leaders Arsenal this past weekend.
And with the international break now upon us, the Red Devils boss would have been hoping for a more relaxed couple of weeks.However, after receiving the news that Michael Carrick faces a lengthy lay-off, Moyes will be anything but relaxed.
In reality, losing Carrick is Moyes' biggest nightmare. The 32-year-old has been the first name on the team-sheet at Old Trafford over the past year or so and the Red Devils simply aren't the same team without him.
Acting as the catalyst to United's attacks, Carrick breaks up play and makes everything look so very simple.
If you look at his statistics alone, the England international has made the second highest amount of interceptions alone in the whole of the Premier League this season. He's also second in the list of average passes per game, only behind Manchester City midfielder Yaya Toure.
That just proves his importance to the United setup and Moyes must be worried.
Carrick, along with Robin van Persie of course, was United's main man in their title winning season in the last campaign and Moyes was unable to bring in a suitable partner or replacement for the English star.
His poor business in the summer could really come back to haunt him. The signing of Marouane Fellaini, so far hasn't worked. The United boss will be desperate for his £27.5 million man to step up in Carrick's absence, but can he? He's a different player to Carrick and United could be left with a major hole in their side.
Moyes can also call upon the likes of Tom Cleverley and Phil Jones, but do they really have the ability on the ball that Carrick does and can they help start United's attacks right from the back?
After the international break, United face some testing fixtures.
Moyes' side face three straight away games and none of them will be easy. Trips to Cardiff and Tottenham, with an away day in Germany to take on Bayer Leverkusen in between will prove tricky tasks for Moyes and his side.
For the game against Leverkusen, United won't even be able to call upon Fellaini, as he is suspended. And if United fail to win in Germany, they will face an extremely nerve racking final group clash with Shakhtar at Old Trafford.
United have had a problem in their midfield for the past couple of years, but Carrick has papered over the cracks and kept the middle of the park ticking at the Theatre of Dreams.
And now, Moyes is in need of someone stepping up and filling the great void that Carrick will leave. But can anyone do it? The United boss will certainly be counting down the days for his star midfield man to return.