Houston were reduced to 10 men for the second consecutive game when Herrera was sent off in the 66th minute in Texas, where Seattle won 7-6 on penalties after a 1-1 draw late on Sunday.
While the referee initially did not spot the incident, Herrera was shown a red card after a Video Assistant Referee review, according to US media reports.
The incident occurred after Herrera had received a yellow card for a foul on Seattle defender Jackson Ragen.
The 34-year-old midfielder, capped 105 times for Mexico, has made 82 appearances for the MLS side since joining from LaLiga's Atletico Madrid in 2022.