Tom Brady was just 19-for-39 in the New England Patriots' Week 2 win over the New York Jets on Thursday.
It had been four years since Brady finished a game in which he completed less than half of his passes.
Brady's receivers struggled to make catches as he adjusts to playing without Wes Welker and Aaron Hernandez.
“I think I have to do a better job with my body language," said Brady. "I definitely can improve that. I wouldn't say it's a real strong point of mine right now. We'll just try to keep doing better. That's what we've got to do.”