Mac Jones is believed to have suffered a high ankle sprain Sunday during the closing stages of the New England Patriots' 37-26 loss to the Baltimore Ravens, according to a source.

The second-year quarterback will undergo an MRI on Monday to confirm the diagnosis and determine its severity.

Initial tests revealed that the injury wasn't anything that would end his season, per a source.

The injury occurred on Jones' final pass attempt of the day, an interception late in the fourth quarter, when he was hit by Calais Campbell and immediately grabbed for his left ankle.