The third-quarter play broke a 6-6 tie, sending the Cowboys to a 23-13 victory.
Witten's availability for the rematch in Week 2 this season appears tenuous following news that the Pro Bowl tight end is recovering from a lacerated spleen.
Players can fight through some injuries without incurring risks associated with organ damage.
"It's different," Witten said. "It's not something you can just fight through and dig deep. But it's hard. It's the first time for me to be in this situation. I'm staying optimistic and staying positive. We're all hopeful to get the results we're looking for."
The Cowboys don't know when Witten will be healthy enough to play. They'll hold him out of the preseason. Witten could play in Week 1 against the New York Giants. But as he has said, there's no firm timetable.
Witten caught four passes for 71 yards and the one touchdown against Seattle last season.