The second Bruce's blade was caught, he knew he had to act. Nexus had poured too many points into his style of fighting for him to believe that there wouldn't be multiple moves in the next instant. 

So, as Nexus' dagger slid up the length of Bruce's sword, he released the hilt to give his left arm room to maneuver. Before the chain went taut as the spiked ball flew by the ducking target, Bruce circled his left hand around Nexus' in a clockwise motion, leaving the actual catch of his opponent's appendage to momentum. 

Bruce had bent his knees a bit more to jump as he did this, but still took another moment before he could reliably get the push and the air he required. Nexus' strike, therefore, found some purchase in the right side of his torso before Bruce leapt up. He grit his teeth, however, and gripped Nexus' left shoulder with his right arm to flip overhead. 

Short of being cleaved in half or decapitated, one cut wouldn't end the fight. 

Once the toe of Bruce's sandal touched the floor, he snapped his left hand back to the hilt still restrained by Nexus. Though the blade was caught, if he could maintain the chain that kept their left arms together, Bruce could manipulate it as some minor defense, the blade pointing downward. 

He formed a fresh sword of Ki in his right hand for another offensive horizontal slash.