Andy Pettitte signed a one-year, incentive-laden deal with the Yankees this past winter.
The deal has a $5.5 million base salary, but he is set to receive a $750,000 bonus for every 10 innings pitched beginning at 180.
Pettitte has already earned three $500,000 bonuses for passing 150, 160 and 170 innings.
He has pitched 178 1/3 innings so far in 2009, but will miss Wednesday's scheduled start with fatigue.
Missed Starts Will Cost Pettitte Money