A day after signing with the Giants, Amukamara was hurt in practice Saturday night and left the field.
Roughly an hour after the workout ended, the Giants said that the cornerback from Nebraska fractured the fifth metatarsal in his left foot. He will have surgery to have a screw inserted in the foot and be sidelined for an undetermined period.
It was not immediately clear how he was hurt. He left the field with a member of the Giants medical staff and X-rays subsequently revealed the fracture.
Amukamara, the 19th overall selection in April's draft, signed a four-year, $8.18 million contract Friday after missing the first five days of training camp. He practiced with the team for the first time that evening, but mostly stayed close to the coaches and veterans to see what was happening.
However, the 22-year-old also knew that the first preseason game was a week away. "Time is running out so I am sure they want to work me in pretty quick," Amukamara said.
All he can do now is wait for his foot to heal.
"I had to step away from football to handle some personal issues and family matters that right now outweigh football and require my immediate and full attention," Patrick said in a statement. "I would ask for everyone's support but also ask for privacy and time in dealing with this matter. Thank you."
The Associated Press contributed to this report