The Red Sox center fielder tumbled to the ground on Saturday after tripping on the first base bag in the ninth inning. He was set to head back to Boston for further examination.
The Red Sox are slowly emerging from triage.
For his part, Bradley was upbeat after the game.
"He's walking under his own power", Farrell told reporters.
Bradley underwent an MRI on his knee Sunday that revealed positive results, team president of baseball operations Dave Dombrowski relayed to The Boston Globe's Pete Abraham before the game. Bradley suggested the Sox want to make sure he can't do additional damage by playing through the injury.
Bradley said he still feels as though he can move around pretty well. "I think that's why want to get the doctor in here to see it so they can kind of determine how much leeway there going to let me do it".
Right fielder Mookie Betts will return to the lineup on Sunday when Rick Porcello and Co. square off against the Tigers. Designated hitter/first baseman Hanley Ramirez remains in Boston with the flu and likely won't rejoin the team until Tuesday at Fenway Park.