Who could successfully assail Yudhishthira before Arjuna? Who else except the son of Radha, who wishes to keep his life, would fight with Arjuna who had defeated single-handed formerly all creatures at Khandava?
को हर्जुनस्य सान्निध्ये शक्तोऽभ्येतुं युधिष्ठिरम्। सर्वभूतानि यो ह्येकः खाण्डवे जितवान् पुरा। कस्तमन्यस्तु राधेयात् प्रतियुद्ध्येजिजीविषुः॥