Stand up for someone
Stick up for someone / Take up the cudgels for / Take someone's side
Prendere le difese di qualcuno
Stick up for someone / Take up the cudgels for / Take someone's side
Prendere le difese di qualcuno
Examples
When Mary was being criticized, Jane stood up for her
Quando Maria venne criticata, Giovanna prese le sue difeseThe boy's mother will naturally stand up for him
La madre naturalmente prenderà le difese del ragazzo