No. 1 doubles seed of Lock and Nunez win first round match on ESPN3
Third-year event has attracted top teams, players from around country; will air on ESPN3.
The senior won both singles matches to advance to Sunday's quarterfinals.
Four ‘Noles combine for 7-1 record on the day, perfect 4-0 in singles.
Lock and Nunez seeded No. 1 in doubles draw, look to defend 2013 title.
Brothers Terrance and Terrell Whitehurst will be eligible in the spring.
Lock, Nunez drop three-set heartbreaker to USC.
Victory is the 'Noles highest-ranked doubles victory since 2013.
The junior will take on UNC's Murray for spot in Main Draw.
Lock, Nunez advance to play Day 2 matches at national event.
Sophomore wins singles match, finishes 6-1 on the weekend.
Doubles duo wins first draw of the year for the 'Noles.