Mahabharata 7.163.21

तथा द्रोणार्जुनौ चित्रमयुध्येतां महारथौआचार्यशिष्यौ राजेन्द्र कृतप्रहरणौ युधि

tathā droṇārjunau citramayudhyetāṃ mahārathauācāryaśiṣyau rājendra kṛtapraharaṇau yudhi

Our plain-language meaning of this verse is waiting for scholar review.