Hi, --------- As far as I know each player gets 3 times to challenge the rulling. Each time the player is wrong his "account" decreases by 1 untill he can no more challenge (when he comes to zero). But if a palyer is right (in other words the rulling / call [line man or referee] was wrong) than his "challemging account" stays as it was (untouched). So: as long as the player is right he / she can challenge as many times as he / she likes..... but each time the player is wrong than he / she has one challenge less in his account..... Hope I am clear enough. ------- Best regards,