
Marti’s contract in Leverkusen was due to expire this summer. Her transfer is for an undisclosed fee. The defender is the second Switzerland international to leave Bayer 04 this January, after Amira Arfaoui joined Nürnberg.
The 24-year-old first came to Leverkusen from Basel in summer 2020, making 55 competitive appearances for Bayer 04 and scoring one goal. Marti has struggled this season with a thigh injury that has restricted her to only two substitute appearances in the Bundesliga and one in the DFB-Pokal. The left-back was named alongside Arfaoui in the Switzerland squad for the 2023 World Cup in Australia and New Zealand, coming on late in the 5-1 last-16 defeat to eventual champions Spain.
“Lara came to us with the desire for a new challenge,” said Achim Feifel, head of Bayer 04 Women. “We’d like to thank her for her years of commitment to the club and wish her all the best in Leipzig.”

Midfielder Ruby Grant is leaving Bayer 04 Leverkusen and joining Portuguese runners-up Sporting CP a year before her contract expires. The 24-year-old has been at the Werkself since January 2025.
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Bayer 04 have loaned Brazilian full-back Arthur to Bundesliga side Werder Bremen for one year. Arthur Augusto de Matos Soares – the full name of the right-back – has a contract with Leverkusen until 30 June 2031. At Werder, the 23-year-old is expected to make an impact and help the long-established club further consolidate their position in the Bundesliga.
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Bayer 04 have loaned defender Jeanuel Belocian to Spanish top-flight side Racing Santander. The 21-year-old defender joins the team currently ninth in La Liga until the end of the current 2026/27 season. Belocian’s contract remains valid until 30 June 2029. Last season, the 1.86-metre-tall U21 international was loaned to VfL Wolfsburg for six months.
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He knows the dressing room, the pitch and the club. But, above all, he knows the feeling of playing for the Werkself at the BayArena: Moussa Diaby is back in Leverkusen after three years. The lightning-fast winger has signed a contract with Bayer 04 until 2031 and he will once again wear the number 19 jersey. The left-footed player previously played for the club from 2019 to 2023, having arrived in the Rhineland from his native France as a promising young talent and eventually leaving the club – having established himself as one of the Bundesliga’s best attackers – to join Aston Villa in the Premier League. Now he has returned to Bayer 04 from Al-Ittihad FC in Saudi Arabia.
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