here is another snippet from the same Article. It looks like Pavlik's father was worried.

"At eleven o’clock, Loew gloved Kelly up.

Fighter and trainer began working the pads. It was Kelly’s first strenuous exercise of the night.

“Double jab,” Loew instructed. “That’s it. Chin down. Aggressive but patient.”

Kelly began to cough.

“Stick to the game plan. Nice and easy. Double the jab.”

The hard edge that had permeated the dressing room prior to Kelly’s recent fights didn’t seem to be there.

“That’s it. Punish him. Hard to the body. If you hit him on the belt and he turns to the referee to bitch, jump on his ass.”

Each time Loew took a break, Kelly went into the adjacent bathroom, coughed, and spat out phlegm. The third time he did it, Mike Pavlik turned away in a corner of the room, pressed both fists against the wall, and took a deep breath. A very deep breath. “Christ,” he murmured.