Fields has broken out over the past couple of months, establishing himself as the Bears' quarterback of the future, but it is yet to translate to wins.
After only throwing a touchdown pass in one of Chicago's first four games, Fields has now thrown a touchdown pass in each of their past seven fixtures, going 1-6 in that stretch.
It is hardly Fields' fault, with the defense conceding an average of 35.5 points per game across their past four outings, while Fields has also broken the record for rushing yards from a quarterback in a single regular season game (178) and the record for most over a two-game span (325).
Attempting to come back from a late deficit against the Falcons, Fields told reporters he believes he landed on it awkwardly, forcing him to finish the game in pain.
"I don't know what happened, to be honest with you," he said. "I just landed on it, I think.
"I was hurting, but it was the last drive of the game. I tried to be there for my teammates and fight through the pain.
"The pain right now is pretty bad. I'll just take it day by day and see how it feels later in the week."
Bears head coach Matt Eberflus added they are expecting an update mid-week.
"We will have an update on Wednesday," he said. "We don't know what exactly it is, that's why we are going to take a look at it."