Unai Emery was the man who pushed to sign the 24-year-old after securing him as a top-flight transfer option.
Villa made an initial offer of 35 million euros plus 10 million euros in add-ons but were rejected. Leverkusen reply rejected However, negotiations are still ongoing and Villa
‘s second offer has already totaled €50m (£42.9m).
Villa made an initial offer of €35m (£30m) with an extra €10m in add-ons for Diaby. But that was swiftly rejected by the Bundesliga club.
Their target Marco Asensio opted for a move to Paris Saint-Germain and was unable to persuade Neco Williams from Athletic Bilbao.
The Bundesliga club is yet to respond to the proposal and may wait for a new offer from Saudi Arabian club Al-Nassr. Who recently signed Cristiano Ronaldo and Marcelo Brozovic. The latest offer from the Saudi Pro League side was slightly lower at €43m, but the sports daily report that the club’s representatives say they are able to increase their offer.
Emery is hoping to add more to his squad as Villa finished seventh last season and will qualify for European football when the new campaign begins
. 2019 and last season were excellent, scoring 14 goals and providing 11 assists in 48 games in all competitions.