By Harry Talbot

Tottenham are embarking on a major summer transfer plunge regardless of the outcome of Saturday’s Champions League final, Football Insider understands.

The club are keen to heed Mauricio Pochettino’s warnings about ambition and improvement by making a series of early-window forays to strengthen the side.

A Spurs source has told Football Insider the club are close to wrapping up the signing of Fulham sensation Ryan Sessegnon for a £20million-plus fee as dialogue continues over the structure of the deal.

Daniel Levy is working on adding a second major signing by bringing Real Betis attacking midfielder Giovani Lo Celso to London.

The normally frugal chairman has sanctioned another mammoth bid, this time worth £53 million, which would be a club-record transfer fee, for the 23-year-old Argentinian.

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Lo Celso has an £88million release clause in his contract, which also stipulates that Betis must pay 20 per cent of the transfer fee to his former club Paris Saint-Germain.

The La Liga club exercised an option to sign him permanently for £21 million in April after an outstanding season on loan that ended with 16 goals and six assists in 45 games and a place in Argentina’s squad for the Copa América.

Spurs’ recruitment team have been impressed not only by his Spanish league tally this season of nine goals in 32 games, but also his stunning Europa League haul of five goals from seven matches.

In other Spurs news, a pundit has hailed the imminent signing of a Tottenham player for multi-millions by a northern club as a “massive coup”.