It wasn’t about the money for Robinson Cano. At least not completely.

If Cano wanted to maximize his earnings, he would have asked his representatives to negotiate an opt-out clause into his 10-year, $240 million free-agent contract with the Seattle Mariners.

You know, the same type of opt-out that right-hander Zack Greinke received after three years in his six-year, $147 million free-agent contract with the Los Angeles Dodgers last offseason.

And the same type of opt-out that lefty Clayton Kershaw received after five years in his new seven-year, $215 million contract with the Dodgers.

Both Greinke and Kershaw are represented by Casey Close, who also is the agent for the next pitcher in line for a big deal, Japanese right-hander Masahiro Tanaka. Cano is represented by Jay-Z and CAA.

To understand the value of an opt-out clause, consider the possibilities for Kershaw after he earns his first $150 million in his first five years.

If Kershaw opts out, his intention, obviously, will be to negotiate an even better deal. A five-year, $180 million contract — and that might be a conservative projection, based upon the way the market is escalating — would bring his total to 10 years, $330 million.