PHOENIX -- Early Sunday morning, Odubel Herrera was summoned into manager Pete Mackanin's office for a chat.

It wasn't the first time it has happened this season.

But it was the first time this happened:

Mackanin, according to sources, fined Herrera an undisclosed amount of money stemming from an incident in the previous night's game.

The amount of the fine is not known, but it definitely wasn't one of the $1 fines that Mackanin hands out for trivial missteps in the team's kangaroo court.

This was a disciplinary action.

In Saturday night's game against Arizona, Herrera was caught trying to steal second base for the third out in the top of the sixth inning with the Phillies trailing, 3-2, in what became a 9-2 loss. Herrera took off on pitcher Robbie Ray's first move and was caught in a play that was scored 1-3-4.

The problem wasn’t as much Herrera getting caught — though that hurt in a close game — it was that Mackanin had put the red light on Herrera after he'd reached first base on a two-out single. Herrera often has a green light, but in this case Mackanin killed it because he feared an open first base would have resulted in Arizona walking No. 8 hitter Cameron Rupp to get to the pitcher's spot.

Mackanin would not confirm or deny the fine when asked about it Monday. After a moment of silence, all he would say was, "Base running matters." He then walked away.

Herrera's play this season has been occasionally amazing and often frustrating. He is hitting .333 (33 for 99) with a majors-high 13 doubles in the month of June and leads the Phillies with 75 hits and 31 extra-base hits for the season.

But there have been times when Herrera has lacked focus, such as last week when he ran through a stop sign at third base in a close game and was picked off third base in another. In Monday's series finale in Phoenix, a 6-1 loss, he struck out three times. He made no effort to run to first base on a dropped third strike in the first inning.

Herrera signed a five-year, $30.5 million contract with the Phillies over the winter. Manager fines are generally just a few hundred dollars and are donated to charity so the one levied by Mackanin won't break Herrera. Nonetheless, it’s noteworthy that Mackanin was moved to such an action.