Complex sentence: Before the 2015--16 season, RB Leipzig invested further in strengthening the team, signing Davie Selke from Werder Bremen, Atınç Nukan from Beşiktaş, Marcel Halstenberg from FC St. Pauli and Willi Orban from 1.
Split into simpler sentences: Before the 2015--16 season, RB Leipzig invested further in strengthening the team. The club signed players Davie Selke from Werder Bremen, Atınç Nukan from Beşiktaş, Marcel Halstenberg from FC St. Pauli and Willi Orban from 1.