Hoping to snap a three-game losing streak, the Chiefs went home for a Week 12 Sunday night duel with the Pittsburgh Steelers.  Kansas City delivered the game's first punch in the opening quarter with a 41-yard field goal from kicker Ryan Succop.  The Steelers would answer in the second quarter with kicker Shaun Suisham getting a 21-yard field goal, followed by quarterback Ben Roethlisberger completing a 2-yard touchdown pass to tight end Weslye Saunders.  The Chiefs would reply with a 49-yard field goal from Succop, but Pittsburgh would close out the half with Suisham booting a 49-yard field goal.  After a scoreless third quarter, Kansas City began to chip away at their deficit in the fourth quarter with a 40-yard field goal from Succop.  However, the Steelers' defense held on to preserve the win.
Question: What was able to save the win for the Steelers'?
Answer: defense held on