Thirty-three matches and the top two teams are separated by just one point.
The battle for the 2018 Supporters' Shield between Atlanta United FC and the New York Red Bulls will be decided on the final day of the regular season, Decision Day, presented by AT&T.
"When you start the year, you hope to be in this spot, where you’ve put together 21 wins, it’s been a great run that the guys are on," Head Coach Chris Armas said.
Atlanta has the advantage heading into the simultaneous 4:30 p.m. kickoffs on Sunday, leading the Shield race by one point.