Complex sentence: The Astros became only the second team to come back twice from three runs down in a World Series game, the other were the Toronto Blue Jays in the 15--14 win during Game 4 of the 1993 World Series.
Split into simpler sentences: The Astros became only the second team to come back twice from three runs down in a World Series game. The other were the Toronto Blue Jays in the 15--14 win during Game 4 of the 1993 World Series.