Complex sentence: On the same day, the NL East champion Philadelphia Phillies defeated the Atlanta Braves, and the Braves loss, combined with the St. Louis Cardinals victory over the NL Central rival Houston Astros, eliminated the Braves from the postseason.
Split into simpler sentences: On the same day, the NL East champion Philadelphia Phillies defeated the Atlanta Braves. But the Braves loss, combined with the St. Louis Cardinals victory over the NL Central rival Houston Astros, eliminated the Braves from the postseason.