Complex sentence: When Ferrell was traded to the Washington Senators in June of that same year, Desautels became the starting catcher for the Red Sox, however, his poor hitting performance meant that he would be traded to the Cleveland Indians for Frankie Pytlak after the 1940 season.
Split into simpler sentences: When Ferrell was traded to the Washington Senators in June of that same year, Desautels became the starting catcher for the Red Sox. However, his offensive performance diminished in 1939 and, he would be traded to the Cleveland Indians for Frankie Pytlak after the 1940 season.