Columbus Crew were holding onto a 1-0 advantage vs. San Diego FC when defender Malte Amundsen was shown a red card.
Onni Valakari scored San Diego FC's first-ever goal at Snapdragon Stadium in a 1-1 tie with the Columbus Crew.
The radio broadcast of Crew vs San Diego will be available on 105.7 FM and the iHeartRadio app with Chris Doran on the call.