Famously, the January transfer window is the more difficult of the two to operate in. It's hard to persuade other clubs to give up assets mid-season, sometimes even harder to convince players that they're better off making a move immediately rather than waiting until the following summer. But that doesn't mean deals are impossible, or that you can't get good value for your buck.

Vasco da Gama sensation Rayan Vitor is already into the third season of his senior career, despite only turning 19 on August 3, which is not a normal occurrence in the Brazilian Serie A, or indeed any other top league in the world. Rayan's star has also risen rapidly despite Vasco facing one of the most turbulent periods in their history, with financial uncertainty undermining the team's efforts since key figures from U.S. investment firm 777 Partners were removed from the board in May 2024.

Tottenham are among a number of teams chasing highly-rated Brazilian teenager Rayan Vitor. The 19-year-old has excelled for Vasco da Gama this season, scoring seven times to boost his reputation. However, Spurs wouldn't be the only Premier League side to show an interest in Rayan, who is also reportedly wanted by rivals Chelsea and Liverpool.