Doubt surrounded Laurent Koscielny and Marouane Chamakh's moves to Arsenal in 2010.
The former joined as a young and inexperienced French defender from Lorient, who had impressed in Ligue 1 and helped his side to an impressive seventh-place finish.
As for Chamakh, he arrived on a bosman transfer from Bordeaux and was tipped by Arsene Wenger to become an "important player" for Arsenal.
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One would prove to be a superb signing, while the other was nothing short of useless - can you guess which is which?
While Koscielny endured a difficult start to life at the Emirates Stadium, he has since developed into one of the Premier League's - if not Europe's - best centre-backs.
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For the best part of four years the France international has been a rock at the back for Arsenal, most recently forging a superb partnership with summer signing Shkodran Mustafi.
As for Chamakh - well, where do you begin. Ten goals in his first 17 starts suggested Wenger had secured an absolute bargain, yet he quickly lost form and is now regarded as one of Arsenal's worst ever signings.
It's all the above that makes BT Sport presenter Jake Humphrey's prediction about the pair in 2010 all the more ridiculous.
Writing for Match of the Day magazine upon Koscielny and Chamakh's arrivals (see below), the journalist claimed Chamakh would thrive in the Premier League while Koscielny struggled.
In response to a reader's question about the defender and striker, he said: "I'm expecting Chamakh to deal with the pressure of playing in the Prem and bang the goals in.
"But I think Koscielny could struggle with the pace and strength of the Premier League!"
How wrong he would prove to be - and football fans reminded him of that fact today by mercilessly mocking him on Twitter. Here's the best reaction.
In fairness to Humphrey, Chamakh did make a decent start to life at Arsenal and Koscielny was catastrophically bad in his first two seasons, but even still.
Wenger recently summed up just how meteoric Koscielny's rise has been since arriving at the Emirates Stadium for £8.45 million six years ago.
"He comes from a small city in the middle of France," the Frenchman began, "and I think he did not believe for a long time in his potential.
"He was at Guingamp and didn't make it. They were in division two and then he went to Tours in division three.
"Then to become an international player with France - it takes you a while to really believe in your true potential.
"He always behaved a little bit within himself. Now comes out of him what is in him. He got rid of that past. Is he as good as anyone around I that position? I think so."