New York RB momentarily moved to the top of the Eastern Conference in the MLS on Saturday, coming from behind to claim a gritty 2-1 win on the road to the Chicago Fire.
A Patryk Klimala brace secured the win for New York, including a penalty in the 91st minute, as they claimed top spot in the East on goal difference over Philadelphia Union. Both are on 17 points, but Philadelphia are still to play Nashville on Sunday.
Chicago also scored from the penalty spot to hit the lead, with Xherdan Shaqiri converting in the 16th minute after Ashley Fletcher was judged to have handled the ball.
New York regrouped after a weather delay which forced the two sides off, and substitute Klimala eventually restored parity after a fine assist from Luqinhas in the 75th minute.
A clumsy challenge at the death from Miguel Navarro handed New York the chance to snatch an otherwise even contest, and Klimala calmly put his penalty away for the three points.
Orlando City also moved to 17 points with a 2-1 victory over Charlotte FC on Saturday, but have played 10 games in comparison to NYRB's nine and Philadelphia's eight.
Montreal CF and Columbus Crew kept within touching distance after respective wins over Atlanta and DC United meanwhile, and in Saturday's other Eastern Conference matchup, Cincinnati beat Toronto 2-1.
New England Revolution joined Inter Miami as one of the six teams on 10 points in the East, with Damian River and Adam Buksa giving them a 2-0 victory.
In the West meanwhile, Austin FC also came from behind to go top of the conference, beating Texan rival Houston Dynamo 2-1 but in much less dramatic circumstances than NYRB.
Sebastian Ferreira put the Dynamo ahead in only the fifth minute, but Daniel Pereira was able to equalise before the interval.
Sebastian Driussi kept up his recent goal-scoring form and provided the eventual winner for Austin in the 66th minute, finding a pocket of space in the penalty are before rifling into the top corner.
Los Angeles Galaxy lost ground despite dominating the game, losing 1-0 to Real Salt Lake after Marcelo Silva's goal in the 49th minute.
A Mark-Anthony Kaye goal on the counter in injury time secured a 2-0 win for the Colorado Rapids over the Portland Timbers, while Sporting KC and FC Dallas played out a 2-2 draw.