Complex sentence: He defeated compatriot Stan Wawrinka in four sets in the first all-Swiss Wimbledon men's quarterfinal in history, then beat Milos Raonic in a record 35th major semifinal, breaking the Canadian once in each set and holding serve throughout.
Split into simpler sentences: He defeated compatriot Stan Wawrinka in four sets in the first all-Swiss Wimbledon men's quarterfinal in history, reaching a record 35th major semifinal. Federer beat Milos Raonic in the semi final, breaking the Canadian once in each set and holding serve throughout.