In May 2021, she was named to the 18-player roster for the 2021 FIVB Volleyball Women's Nations League tournament that was played in Rimini, Italy. It was the only major international competition before the Tokyo Olympics in July. She was one of two opposites selected for the tournament alongside Jordan Thompson. Her debut match against Canada saw her scoring 20 points (19-4-37 att, 51.4% hitting efficiency; 1 ace) to lead the US in a straight-sets victory. Against Brazil, Drews scored 16 points (15-7-37 att, 40.5% hitting efficiency; 1 ace) in their four-set win. Drews scored 11 points (9-4-25 att, 36% hitting efficiency; 2 blks) in their victory against the Netherlands. USA again routed Germany in straight sets following Drews' 17 points (17-0-26 att, 65.4% hitting efficiency). USA capped their third round of VNL action beating Italy, three sets to one, lead by Drews' 20 points (18-3-30 att, 60% hitting efficiency; 2 aces).