It was only back in 2013 when Adnan Januzaj was being hailed as one of the next big stars in world football.Four years later, the Belgian international has been shipped on to Real Sociedad in Spain for £9.8 million.The talented winger had two fruitless loan spells with Borussia Dortmund and Sunderland in a bid to return to prominence but things really didn't work out.In fact, he failed to score a single league goal during either spell and returned to Old Trafford this summer nowhere near Jose Mourinho's first team plans.Ironically, Januzaj is making the same move out of Old Trafford that their boss that gave him his big break, David Moyes, had to after his sacking in the summer of 2014.The 22-year-old has plenty of time to go away and prove himself to be the player he threatened to be when he first broke in at Old Trafford.Despite a slightly tumultuous time for the Red Devils, Januzaj penned an emotional goodbye message to the Manchester United fans, but the wording has got some people wondering.He posted on Twitter: "Where to start… I’ve had some incredible moments with Manchester United since I joined.

"I want to say a massive thank you to all my team-mates that have come and gone from the club. It’s been a pleasure to play with you all.

"Thank you to some of the coaches and staff that work at Manchester United to make it such a great club!"

Some coaches? Is that a dig at Jose Mourinho? Or possibly Louis Van Gaal, the man who first loaned him out?

He continued: "Unfortunately, my time at the club has come to an end and it didn’t go the way I wanted it to go but I will always have love for Manchester United.

"And finally, a huge thank you to the fans that have stuck by me through the good and bad times! I will never forget that positive support. Thank you #GGMU"

Januzaj clearly said 'some' coaches for a reason, but his vague message could be interpreted in a number of ways.

The best message he could send to whatever coach he is talking about would be to rediscover his best form.