Transfer Rumours: Olise gives green light to Real Madrid, Arsenal prepare Nusa bid, Milan hold Mazraoui talks

The summer transfer window is buzzing with activity, and a trio of high-profile rumours are dominating the headlines. According to Foot Mercato, Bayern Munich star Michael Olise has approved a move to Real Madrid. The France international is said to be receptive to Los Blancos' interest and views a switch to the Spanish capital as the perfect next step in his career after shining at the Allianz Arena. Bayern are not keen on selling, but the report claims they are already looking into potential replacements. Olise is expected to hold face-to-face talks with the Bundesliga champions once he returns from his post-World Cup holiday. Meanwhile, Arsenal are preparing to make a concrete offer for Antonio Nusa. CaughtOffside reports that the Gunners are ready to test RB Leipzig's resolve with a bid in the region of €40 million for the Norwegian winger. Nusa was a key figure in Norway's run to the World Cup quarter-finals, which has only strengthened Arsenal's interest. However, Leipzig are holding out for a fee north of €60 million and are unlikely to accept anything less. Over in Italy, AC Milan have made contact with superagent Rafaela Pimenta to explore a deal for Noussair Mazraoui, according to Nicolo Schira. The Morocco international faces an uncertain future at Manchester United after making just five starts under Michael Carrick in the second half of last season. It remains unclear how Pimenta is involved, as she does not formally represent the 28-year-old — his affairs are handled by the UK-based PANTHERA agency. In other rumours, a midfielder identified only as Casado has turned down approaches from Chelsea and Manchester City, insisting he will only join a club that guarantees regular minutes. Arsenal are also expected to hold club-to-club talks with Club Brugge over Greek winger Christos Tzolis, who has made it clear he only wants to move to the Emirates.