According to ESPN BR, Santos is pursuing Rubens from Dínamo Moscou. An initial offer from Santos to purchase 50% of the player's economic rights was rejected by Dínamo Moscou. The club is asking for 9 million euros. After a permanent transfer was not agreed upon, Santos is now making a second offer for a loan with a purchase option. Rubens is a starter for Dínamo Moscou.

As Santos seeks a Brazilian left-back for the mid-year transfer window, the club is monitoring Rubens, a 24-year-old former Atlético-MG player who is now at Dínamo Moscou in Russia. Santos has already inquired about the player, though a potential negotiation is considered more difficult because he is an expensive player. The defender, who joined the Russian club in July 2025, has a contract until June 2030 and has a current market value of €8.00m according to Transfermarkt. Corinthians, Cruzeiro, and Botafogo have also been mentioned in connection with the player.