Claes and Hughes didn't drop a set en route to a 5-0 mark in dual matches last week and a 3-0 record in pairs competition. The duo is now 26-0 together this season and has won 99 consecutive matches, dating back to the 2015 season.
Claes and Hughes have a shot at No. 100 on Friday when the Trojans host Washington at 4 p.m.
With today's selection, No. 1 USC has earned four of the five Pac-12 Pair of the Week awards this year.
