Hampton was placed on the 7-day injured list at Double-A Somerset on Tuesday with a groin injury, Gary Phillips of the New York Daily News reports.
Double-A Somerset reinstated Hampton (elbow) from its 60-day injured list Tuesday.
Hampton (shoulder) began a rehab assignment in the rookie-level Florida Complex League on Monday as he continues to work his way back from a UCL sprain in his right elbow, Gary Phillips of the New York Daily News reports.
Double-A Somerset transferred Hampton (shoulder) from its 7-day injured list to the 60-day IL on Saturday.
Hampton is opening the year on the injured list with Double-A Somerset due to shoulder discomfort, Brendan Samson of MLB.com reports.
Hampton was promoted from High-A Hudson Valley to Double-A Somerset on Thursday.