Heath Bell thought the curveball he threw Friday was the right pitch. Ozzie Guillen didn't agree. When it came to Bell's pitch selection in the Marlins' 7-6 nail-biter over the Giants, the closer and his manager had a difference of opinion.

But Guillen was emphatic on one point: Bell is "my guy" as the Marlins' closer despite another rocky outing in which Steve Cishek was brought in to douse the flames and preserve the win. Then again, Guillen made that comment before Bell had another meltdown Saturday and couldn't make it through the ninth.

In Friday's game, Guillen thought that Bell should have gone with his bread-and-butter fastball on a 2-1 pitch to Joaquin Arias to start the ninth. Arias took the pitch for a ball before ripping a double on a 3-2 fastball. Three of the four batters Bell faced reached on hits before Guillen took him out and brought in Cishek.

"When you're up by three runs, the pitch selection was very poor," Guillen said Saturday. "I want him to be aggressive with his fastball. That's the best pitch he has. The breaking ball is not working every once in a while. Just give people your fastball."