Casas received an MRI on Monday to check the healing of his injured ribs, Alex Speier of The Boston Globe reports.
The results aren't expected to be known until Tuesday, but Casas noted that he's feeling good and should have a "quick turnaround" before he resumes swinging a bat, per Gabrielle Starr of the Boston Herald. Casas has been doing some baseball activities but hasn't progressed as quickly as hoped. He's continuing to aim for a return from the 60-day injured list early next week, but even if the MRI yields favorable results, Casas could still face an uphill battle to make it back by his target date.