Tottenham Hotspur continue to build for the future.
The midfielder is a January signing from Ligue 1 side Bordeaux.
New Liverpool defender played for the Reds under-21s on Tuesday evening.
The Premier League trio all watched the Italian side's 1-0 victory over Verona earlier in the month.
The Premier League side are hopeful of getting their hands on Cook this month.
The Romanian has left the club for Watford.
The Gunners have already signed Mohamed Elneny from FC Basel.
A selection of the latest stories in the media involving Liverpool Football Club this Wednesday morning.
Flawed polling “manifestly and substantially” altered the result of the general election, the former Liberal Democrat leader Paddy Ashdown has said. He called on polling companies to “get their house in order”.
Morton manager Jim Duffy has hailed Ranger's attacking options - and believes Michael O'Halloran would only improve them.