His standout showing was highlighted by his first career MLS goal, making him the eighth-youngest goalscorer in league history at 16 years, 7 months, 15 days. The 16-year-old also added an assist, becoming the second-youngest player in MLS history to record both a goal and an assist in a single match.
Sullivan has appeared in 11 matches this season, tying a career high, while making a career-best four starts.
The Union return home to Subaru Park on Saturday to host the Columbus Crew at 7:30 p.m. ET on Apple TV in their final match before the World Cup break.