As captain, the former world number one led the United States to a 10-8 record in World Group play, including a run to the semi-finals in 2012 and 2018, the latter which ended in a loss to Croatia 11 days ago.
Barcelona must to wait to confirm a place in the Champions League last 16 after dropping points for the first time in Group D in an absorbing 0-0 draw at Olympiakos Piraeus on Tuesday.