Arsenal or Tottenham would have to part with €50 million if they hope to secure the signature of Brazilian striker Leandro Damiao during the January transfer window.
The 22-year-old has scored 17 goals in 13 appearances for Internacional this season and continues to attract plenty of interest from Europe.
Both Arsenal and Tottenham have been frequently linked with Damiao in the past, while mega-rich Paris Saint-Germain are also reported to be keen on the Brazil international.
However, his current employers are desperate to retain his services until the summer at least, unless any suitors meet the release clause written into his contract.
"I don't believe that SC Internacional president [Giovani] Luigi will let him go for under €25m," a source close to the player told the International Business Times.
"There is nearly no chance that Inter will let him go before the summer, because they need him urgently for the upcoming Copa Libertadores. Only if someone pays the €50m [buy-out clause]."
When asked about specific interest from either Arsenal or Tottenham in Damiao, the source added the latter had made contact of sorts, while the former had not even in touch at all.
"Internacional has a good relationship with Tottenham because of Sandro; of course there was an exchange of a superficial conservation, but nothing else what I know. I know nothing officially from Arsenal," explained the source.