But what should Celtic fans know about their potential new recruit?
HITC Sport has the lowdown:
Who is he?
A 23-year-old French-born Malian winger. Leicester signed Diabate on a four-and-a-half-year deal from Gazelec Ajaccio in January 2018, for a fee of £1.8 million according to Transfermarkt.
What sort of player is he?
Despite playing predominantly on the right flank, Diabate is actually left-footed. His strengths include dribbling and set-piece taking, but his defensive contribution and finishing need work, according to Whoscored.
The next Riyad Mahrez?
Speaking about Diabate shortly after the player's arrival at Leicester, his then-boss Claude Puel - whose son, Gregoire, incidentally recommended Diabate after playing against him in France - told The Telegraph: “Of course he is not the same quality for the moment as an experienced player like Mahrez but I think for the future he will be a good solution.
“He is a young player and he just has to continue to improve and work. He had a good match to make progress, it is good for him and his confidence and now it’s important that he keeps this good spirit and not just play one game."
What's his situation?
Diabate has only played 19 times for Leicester, scoring two goals (both en debut against Peterborough United) and creating another. He spent second half last season on loan at Sivasspor and scored or assisted five goals in 17 games. He has yet to play competitively for Brendan Rodgers, the former Celtic manager.
What has Rodgers said?
Speaking via The Leicester Mercury before the Celtic links surfaced, the Ulsterman suggested that Diabate will leave the King Power Stadium before the deadline.
"I’d seen a bit of [Diabate]… I’d done my homework on him," he said. "It’s one of those where he is a talent, but there are others ahead of him.
"You can only have so many. We’ve got Harvey [Barnes], Demarai [Gray] and Marc Albrighton.
"It’s difficult for the likes of Diabate and Rachid because there are players in front of them.
"There will be, in the next few weeks, opportunities for these guys to go and play."
Would Diabate be a good addition for Celtic?
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