Age39
CountrySpain
Residence Madrid, Spain
Turned Pro1997
2020 Earnings$255,548
Lopez, playing his record 75th successive Grand Slam, has won a five-setter in 21 of them.
Fognini saved a match point to topple countryman Caruso, before the two exchanged words.
Nadal topped Feliciano Lopez to become the fourth man in the Open Era to achieve the feat.
The Frenchman survived a sudden-death battle against Taylor Fritz.
Seven matches take place at UTS2 on Saturday, all building up to Sunday's finale.