In this Dec. 12, 2013, file photo, Robinson Cano poses for a photo in his new jersey at Safeco Field in Seattle, after he was introduced as the newest member of the Mariners. (Ted S. Warren/AP)

Robinson Cano is beginning the first season of a 10-year, $240 million contract with the Seattle Mariners.

Imagine how much he might’ve made if he ran hard to first base.

Cano’s baseball skills are undeniable: He has batted .300 or better in seven of nine seasons, has hit at least 25 homers five straight years, has played in at least 159 games in each of the last seven seasons and won two Gold Gloves as a second baseman.

But, you know, he doesn’t like running out groundballs.

I recall once going to a Yo-Yo Ma concert in which the famed cellist dogged it on some minor chords because, as he told me afterward, “they’re just minor chords.” That’s the last time I’m paying $6 on StubHub for classical tickets.

The Post Sports Live crew debates which single player is most important to the Nationals’ overall success in 2014. (Post Sports Live/The Washington Post)

Some argue that Cano has occasional leg problems, and by picking a spot here and there not to run hard, he is saving those legs. Really? By jogging those 90 feet between home plate and first base, he’s extending his career? Please. A Ritz-Carlton bellhop covers more ground between the check-in desk and the elevator bank, and he’s carrying luggage.

With his new contract, Cano is making $150,000 a game, but that doesn’t guarantee the former Yankee will run out grounders. That would be like me getting 150 grand per column and leaving off punctuation from time to time because I’m not in the mood; actually, I think Rick Reilly does that.

To negotiate his latest deal, Cano switched agents, from Scott Boras to Jay-Z. From rapping to repping, Jay-Z has seamlessly made the transition from offensive lyrics to offensive contracts.

(Column Intermission: Springbrook’s boys basketball team won three games in three nights to advance to the Maryland Class 4A state semifinals. When the Blue Devils won the region final — as Aaron Robinson made 4 of 5 three-pointers in the opening quarter — I nearly cried for the first time since watching “Rudy.” And my stepson, Isaiah Eisendorf, has gotten so good, I might add him to my will and drop my brother; sorry, Steve.)

Jay-Z had hoped to procure Cano a $300 million deal but settled for a mere $240 million with no conditions on running out grounders. I am reminded of the pre-Scott Boras/Jay-Z days, when greed did not overtake America and contract talks were a lot simpler — as demonstrated in this scene from the 1942 film “Casablanca,” in which Sam the piano player considers a job offer:

Rick: “Sam, Ferrari wants you to work for him at the Blue Parrot.”

Sam: “Oh, I like it fine here [at Rick’s].”

Rick: “He’ll double what I pay you.”

Sam: “Yeah, but I ain’t got time to spend the money I make here.”

Rick (to Ferrari): “Sorry.”

Sure, Sam left a lot of money on the table, and with Jay-Z or Boras in his corner, he probably could’ve tripled his salary. But what about happiness? What if he didn’t like the commute to the east end of Casablanca? What if the second-hand smoke at the Blue Parrot was worse than at Rick’s? What if he went to the new club and customers there heckled him when he played “As Time Goes By”? Sam was ahead of the curve and likely ran with gusto to his piano every shift.

Will the Mariners get their $240 million worth? If Cano helps them win, attendance will spike, but otherwise, he is not a draw. People come to the ballpark for A-Rod and Derek Jeter and Albert Pujols and Mike Trout, to see Stephen Strasburg and Gerrit Cole pitch, but no one is changing their Friday night plans to watch Cano run halfheartedly after hitting a ground ball to shortstop.

A number of years ago, I applied for a position at a telephone company as a utility-line repairman. At the job interview, I mentioned that, on occasion, I didn’t like climbing telephone poles early in the morning. That ended the interview and my chances for the job.

Similarly — and I know someone out there is going to tell me this isn’t analogous — shouldn’t the fact that a player doesn’t run hard to first on routine grounders preclude him from work at the highest levels of the baseball industry? Apparently not. Well, shouldn’t it at least preclude him from signing one of the biggest contracts in MLB history? Apparently not.

I wonder whether Robinson Cano at least runs hard to the bank. Nah. He probably has direct deposit.

Ask The Slouch

Q. Is Dan Jenkins’s 1991 novel, “You Gotta Play Hurt,” an unauthorized biography of you? The book’s blurb says it is about a journalist who smokes, drinks and can be often found at a poker table, with three ex-wives and two girlfriends. (John Donnelly; Reston)

A. I have never smoked.

Q. Were you surprised ESPN didn’t devote a two-hour special to LeBron James’s mask decision? (Jim Droppa; Indianapolis)

A. ESPN wanted to, but Jim Gray was not available.

Q. Do you think Aaron Hernandez thought they were filming another remake of “The Longest Yard”? (Bob Obrist; Arlington)

A. Pay the man, Shirley.

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