Complex sentence: The Phillies have repeatedly played the Los Angeles Dodgers at critical junctures; the two teams have met in the NLCS five times, and the 1950 "Whiz Kids" clinched the NL pennant on the last day of the season by beating the second place Brooklyn Dodgers.
Split into simpler sentences: The Phillies have also had a long rivalry with the Los Angeles Dodgers; the two teams have met in the NLCS five times. The rivalry extends to the Dodgers' time in Brooklyn; the 1950 "Whiz Kids" Phillies teams clinched the NL pennant on the last day of the season by beating the second place Brooklyn Dodgers.