Complex sentence: The teams played a scoreless game until early in the fourth quarter when, after Chicago had fumbled in their own end of the field, the Eagles recovered the fumble that set up Steve Van Buren's five yard touchdown at 1:05 into the fourth quarter.
Split into simpler sentences: The teams played in scoreless game until early in the fourth quarter, when after Chicago had fumbled in their own end of the field. The Eagles recovered the fumble that set up Steve Van Buren's five yard touchdown at 1:05 into the fourth quarter.