The Nigerian was given the marching order by referee Daniel Trujillo two minutes after Artem Kravets had cancelled Oriol Riera’s first half opener for the visitors.
Things got worse for the Nasrids on the stroke of 90 minutes as Granada were reduced to nine men after Ezekiel Ponce was dismissed for a second caution.
The dismissal at Los Cármenes was Agbo’s third in his professional career. He has made 14 appearances for Lucas Alcaraz’s men this season.
Granada are placed 19th on the Spanish elite division log with 10 points from 19 games. They face Espanyol in their next outing on Saturday.