A 150-gallon salt-water tank is now in the Pirates clubhouse and in it are two small sharks along with two other predatory fish. The shark tank surfaced because of the Pirates' "Shark Tank bullpen," a nickname the unit earned because of how dominant it has been this season.

Manager Clint Hurdle was asked about it and said he has no issues with the players having some fun.

"I didn't know if I had to pay if I had to look at it, but they said there was no admission so we are good," Hurdle said. "I was a little confused with the blowfish, but then they said [Mike] Zagurski brought that [after being called up]. ... Ah, they are having fun with it, man, you have to have some fun in this game, I'm a big fan of fun.

"We like focus, we like results, but, sometimes, the fun has to be first, so they have identified with it and embraced it, so we will roll with it."

The tank, loaned to the clubhouse by Elmer's Aquarium for the rest of the season, contains a Saddle Back Grouper, a Banded Cat Shark, a Dogface Puffer and a Coral Cat Shark.

The aquarium will be maintained by Elmer's Aquarium, which is owned by season ticket-holder Gary Knabe.

Morton update

Pitcher Charlie Morton might be closing in on his return to the Pirates. He is scheduled for one more rehabilitation start with Class AAA Indianapolis.

Morton will pitch Sunday against Columbus and will be limited to 80 pitches. Hurdle said Morton will be evaluated after Sunday on performance, health and his command of pitches.

"We will see how he feels after that one," Hurdle said. "We will have a more acute focus on pitch selection, he has to nail the sinker, throw the curveball and the changeup."

He added that he also wants to see Morton throw the 2-seam fastball and 4-seam fastball well.