Complex sentence: The 1968 team was undefeated and heavily favored going into The Game against Harvard University, but after trailing 29--13 with less than a minute remaining, Harvard rallied to tie the game, which ended with a score of 29--29.
Split into simpler sentences: The 1968 team was undefeated and favored going into The Game against Harvard University. Harvard, losing 29--13 with less than a minute remaining, rallied to tie the game, which ended with a score of 29--29.