It looked like a clean sack. You can watch it below and judge for yourself.
Instead of facing a 3rd-and-long, the Saints were given a 1st-and-10 from the 11. That's brutal for an injury-ravaged 49ers team looking for a big upset win on the road. And it left some of Street's sidelined teammates in shock.
Even ESPN's Scott Van Pelt weighed in.