Mbh 8.87.1c

Seeing those two tigers amongst men, viz., Karna and Dhananjaya, engaged in battle, a doubt entered the hearts of all as to which of them would be victorious. Both armed with superior weapons, and both well-practised in battle, both made the welkin resound with the slaps on their armpits. Both possessed of great celebrity in consequence of prowess and might, they resembled the Asura Samvara and the chief of the celestials in respect of their skill in battle. Both equal to Kartavirya or Dasaratha's son in battle, both resembled Vishnu himself in energy or Bhava himself in fight. Both had white steeds, O king, and both were borne on foremost of cars. Both of them, again, had foremost of drivers in that great battle. Beholding, O monarch, those two great car-warriors looking resplendent on their cars, the bands of Siddhas and Charanas that came there became filled with wonder. The Dhartarashtras then, O bull of Bharata's race, with their troops, encompassed the high-souled Karna, that ornament of battle, without losing any time. Similarly the Pandavas headed by Dhrishtadyumna, filled with joy, encompassed that high-souled Partha who was unrivalled in battle. Karna became the stake, O monarch, of thy army in that battle, while Partha became the stake of the Pandavas. The soldiers of both sides were as members of that assembly and became the spectators of that game. Indeed, as regards the parties engaged in that game of battle, either victory or defeat was certain. Those two then, Karna and Arjuna, for victory or the reverse, began the match between ourselves and the Pandavas both standing on the field of battle. Skilled in fight, the two heroes, O monarch, in that encounter, became highly enraged with each other and wished to slay each other. Desiring to take each other's life, like Indra and Vritra, O lord, they faced each other like two mighty comets of terrible form.