The deal with the 32 - year - old Greinke not only helps the D - backs on the field .
It also delivers a blow to the division - rival Dodgers and Giants , who were believed to be the two main suitors for Greinke 's services .
The deal with the 32 - year - old Greinke not only helps the D - backs on the field , but it also delivers a blow to the division - rival Dodgers and Giants , who were believed to be the two main suitors for Greinke 's services .