The Marlins intend to designate Carlos Marmol for assignment on Sunday, one day after the beleaguered reliever gave up four runs in the Marlins' 9-3 loss to the San Diego Padres.

"It's been a struggle for him," said manager Mike Redmond. "It just hasn't worked."

The Marlins signed Marmol to a 1-year deal worth $1.25 million thinking they could fix the issues that plagued him with the Cubs and brought an end to his time in Chicago. But it hasn't worked. Marmol is 0-3 with an 8.10 ERA in 15 relief appearances.

"Couldn't get people out," Marmol said. "I did the best I could, but it didn't work out good. It's tough. You try to do your best and it didn't work out."