Oskar Sivertsen plays at left winger for Go Ahead Eagles in the Dutch Eredivisie. In 2025/26 he has 1 yellow card and 1 red, averaging 0.14 cards per game, with 0.29 fouls committed and 0.43 fouls won per game. His next match is against NEC Nijmegen on 20 September, refereed by Martijn Vos.