According to Cots, Martes tax hit WAS $19.4 million, which is his contract divided by years. We know that resets when traded so that would be $103.5/6 (factoring in the player option). which is $17.25 a year.
Cots is either right or wrong. THey're a good source, but I think Sox Payroll has a better grasp on Bostons payroll.