Gijs Brouwer defeated Marc Andrea Huesler 6–3, 7–5 in the first round of the ATP 250 Rotterdam tournament on hard court on 14 February 2023, pulling off an upset against the pre-match favourite. Huesler entered as the odds-on favourite at 1.32, whilst Brouwer was priced at 3.71, yet the Dutch player delivered a composed performance to secure a two-set victory. Brouwer's composed handling of the second set, where he closed out a tight contest despite Huesler's resistance, proved decisive. The result marks a notable scalp for Brouwer in the early stages of the tournament and suggests improved form heading into the subsequent rounds.