Tottenham's talks for Sporting Lisbon right wing-back Pedro Porro have progressed over the last few days; Spurs are still waiting to be told there is a final agreement for the 23-year-old; Portuguese side are interested in signing Barcelona defender Hector Bellerin as Porro's replacement.

Porro played in Sporting's 2-0 Portuguese League Cup final defeat to Porto on Saturday night, and appeared to wave goodbye to the club's fans after the final whistle. Sky Sports News understands Spurs are prepared to meet the Portuguese club's financial demands for the 23-year-old, who has a £39m release clause in his contract.

Porro has been a key performer for Sporting this season having scored three goals and provided 11 assists in 26 appearances in all competitions.

Tottenham are looking to make the Spaniard their second January signing after the arrival of Villarreal winger Arnaut Danjuma on loan until the end of the season.

Sporting Lisbon are interested in making Hector Bellerin their replacement for Porro.

The former Arsenal defender, however, is unsure whether he wants to leave Barcelona and join Sporting, having only moved to the Nou Camp last summer.

But the Spanish giants need to make money from transfer deals, however, despite improving their financial position in the last year - and Sporting are talking to them about a deal.

The 27-year-old has made just seven appearances in all competitions this season with only three of those coming in LaLiga.

The Lions had also been interested in Brighton's Tariq Lamptey as a replacement for Porro.