The Colombian international got injured in the 15th minute when jumping over a challenge from Cincy center back Yerson Mosquera and landing awkwardly on the Gillette Stadium turf.
Borrero then immediately grabbed his knee in pain before being stretchered off in tears, creating a hush of worry around the home crowd.
Signed in April 2022 from Brazilian side Atlético Mineiro, Borrero is one of Major League Soccer’s most exciting U22 Initiative talents. The versatile winger has five goals and three assists in 19 career regular-season games totaling just under 1,100 minutes.
New England, who entered the weekend as Supporters’ Shield and Eastern Conference leaders, have utilized their depth throughout the 2023 campaign. But losing Borrero, potentially long-term, would be a serious blow.
"Dylan looks like a serious injury," head coach and sporting director Bruce Arena said after the 1-1 draw. "I haven’t gotten confirmation, but I think it’s a serious knee injury."