1grudge 
/ˈgrʌʤ/ noun
plural grudg·es /ˈgrʌʤ/ noun [count] : a strong feeling of anger toward someone that lasts for a long time
▪ She still has/holds/bears a grudge against him for the way he treated her in school. ▪ He has nursed/harbored a grudge against his former boss for years. ▪ I don't bear him any grudges.
▪ She still has/holds/bears a grudge against him for the way he treated her in school. ▪ He has nursed/harbored a grudge against his former boss for years. ▪ I don't bear him any grudges.
grudge match
: a contest or fight between players, teams, etc., who dislike each other
▪ The race had turned into a grudge match between the two teams.
▪ The race had turned into a grudge match between the two teams.
