Celtic pulled off one outstanding raid on Paris Saint-Germain under Brendan Rodgers but seemingly missed out on two more.
Bhoys supporters saw one ex-PSG talent become a Parkhead hero as Moussa Dembele spent two superb years in Glasgow.
Dembele left for Lyon after Celtic finalised a permanent deal for Odsonne Edouard, who joined the Bhoys directly from PSG.
Edouard hit 11 goals during a 2017-18 loan spell at Celtic and the Bhoys secured a permanent deal worth £9million.
Edouard went on to become a Celtic hero, smashing 87 goals in 179 games for the club before joining Crystal Palace in 2021.
The 26-year-old hasn’t quite had the same success in the Premier League but he showed the potential blueprint for Celtic.
The idea was to sign young players from clubs like PSG and develop them into stars – but two potential signings slipped through the net.
Celtic missed out on Chelsea star Christopher Nkunku
Former Celtic recruitment chief Lee Congerton has spoken to The Telegraph about his time at Parkhead.
Congerton went on to Atalanta and has recently become the sporting director of Al-Ahli in the Saudi Pro League.
Congerton’s work at Celtic was sometimes criticised but he has now named two players he wanted to bring to Celtic.
The Welshman claims that he wanted to sign both Moussa Diaby and Christopher Nkunku from the PSG ranks, believing they were ‘never’ going to play for PSG.
Congerton added that Celtic signed players he didn’t even want, sparking his decision to leave the club.
“At Celtic we had no money,” said Congerton. “Peter Lawwell is a nice man, he’s an accountant. Brendan spoke to me and said we needed pace and power, speed. We all know PSG has an amazing youth programme with players at the time who were never going to play for PSG. Two of the other players we tried to sign during my time were [Moussa] Diaby, who is now at Aston Villa, and [Christopher] Nkunku who is now at Chelsea.”
“But there were several players I didn’t want to be anywhere near them and that is why I left. Peter knows that and so did Brendan,” he added.
Nkunku and Diaby could have made Celtic millions
Diaby and Nkunku didn’t really break through with regularity at PSG but became superstars in the Bundesliga.
Diaby hit 49 goals and 48 assists in 172 games for Leverkusen and has shown promise in his first season at Aston Villa having secured a huge £43million move last summer.
Nkunku was even better in Germany, also racking up 172 games but notching 70 goals and 56 assists in the process.
Chelsea forked out £52million to sign Nkunku last summer but injuries mean he has only managed seven Premier League appearances this term.
The pair have proven PSG wrong for letting them go, but have also shown that they could have raked in millions for Celtic, even if the Bundesliga market is a more lucrative one than the Scottish Premiership.