President-elect Joe Biden fractured his right foot while playing with one of his dogs, an injury discovered in a scan Sunday and that will likely require him to wear a boot for several weeks, his doctor said.

Biden suffered the injury on Saturday and visited an orthopedist in Newark, Delaware, on Sunday afternoon, his office said.

“Initial x-rays did not show any obvious fracture”, but medical staff ordered a more detailed CT scan, his doctor, Kevin O’Connor, said in a statement. The subsequent scan found tiny fractures of two small bones in the middle of his right foot, O’Connor said.

“It is anticipated that he will likely require a walking boot for several weeks”, - O’Connor added.