Complex sentence: Signed by the Los Angeles Dodgers in 1972 as an amateur free agent, he was purchased from the Dodgers by the Seattle Mariners in 1976, before making his debut on April 6,1977 against the California Angels, and got the first hit in mariners history.
Split into simpler sentences: Signed by the Los Angeles Dodgers in 1972 as an amateur free agent, he was purchased from the Dodgers by the Seattle Mariners in 1976. In his debut on April 6,1977 against the California Angels, Báez delivered the first hit in Mariners history.