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5/17/2014 9:12 P.M. ET

Quackenbush garners fifth call up of season

DENVER -- Oh, to be a pitcher on the 40-man roster with Minor League options. This certainly isn't a bad life for reliever Kevin Quackenbush, who rejoined the Padres before Saturday's game in Colorado.

This is already Quackenbush's fifth stint with the Padres this season. He was added to the roster on Thursday when the team needed him as the 26th man on the roster for the second game of a doubleheader against the Reds.

Quackenbush flew Friday from Cincinnati to El Paso, where the Padres' Triple-A affiliate is, only to get a text from manager Pat Murphy that he was heading back to the big leagues.

In three outings for the Padres, Quackenbush has allowed two earned runs in 3 2/3 innings. He hasn't allowed a run in each of his last two outings -- May 9 against the Marlins and Thursday against the Reds.

Typically, a player on the 40-man roster is allotted three Minor League option years. He can be sent to the Minor Leagues and recalled as often as needed over those three option years.

The player has to remain in the Minor Leagues for 10 days upon being optioned unless he's recalled to replace a player on the disabled list, paternity leave or the bereavement list. He can also be recalled prior to 10 days if being used as the 26th man on a roster for a doubleheader.

Roach set to make spot start in place of Cashner

DENVER -- The search for a starting pitcher to replace Andrew Cashner in the rotation in time for a start Sunday certainly didn't qualify as exhaustive or laborious.

All manager Bud Black had to do was take a look to his bullpen, as he tabbed rookie Donn Roach to start Sunday against the Rockies after Cashner landed on the 15-day disabled list with elbow soreness.

This will be the first Major League start for Roach, the 24-year-old right-hander.

"He can probably give us 60 pitches that we can feel good about," Black said when asked what Roach's ceiling was for a pitch-count.

"He threw two innings the other night [May 15] and had two days off. He has started in his past and he's got a sinkerball where, if it's working, he should be efficient. We'll find out tomorrow."

Roach has worked exclusively out of the bullpen this season, posting a 2.57 ERA over 12 outings and 21 innings. He has allowed 24 hits, eight walks to go with 13 strikeouts. Roach's plus-pitch is his sinker, which could come in handy at Coors Field.

The Padres will likely have seven relievers available on Sunday in the event Roach needs helps. And the fact that Monday is an off-day for the Padres helps as well, Black said.

Roach is no stranger to starting, as he has made 54 Minor League starts in the Angels' system and later the Padres' system.

Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.