However, the 34-year-old has also accepted some of the blame for the defeat himself, having dropped what would have been a touchdown pass on Carolina's opening series.
"My dropped pass cost us the game. I ran a slant; should have caught that. I didn't. I got a PI (pass interference) penalty, which was very interesting. I got leg humped and hugged a few times," Smith told reporters.
"Being a pretty good flag football player, I think I got my flag pulled on my jersey a few times. I would say pretty much I take that one on the chin and say, 'That's me.'"
The Panthers are now 1-3 for their season ahead of Sunday's trip to face the Minnesota Vikings.