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6/13/2014 11:53 P.M. ET

Right-hander Kingham debuts at Triple-A

Making his Triple-A debut, right-hander Nick Kingham, the Pirates' No. 8 prospect, threw seven scoreless innings on Friday night. But the Indianapolis bullpen couldn't close out the game and Durham came back for a 2-1 victory in 10 innings.

Kingham, ranked No. 89 on MLBPipeline.com's Top 100 Prospects list, struck out a season-high eight batters, allowed five hits and walked one. He threw 95 pitches and went seven innings for his fifth straight start.

After beginning the season with Double-A Altoona, Kingham was promoted to Indianapolis on Thursday. In 12 starts for the Curve, he posted a 3.04 ERA and a 54-to-25 strikeout-to-walk ratio in 71 innings.

Kingham reached Altoona midway through the 2013 season and threw 144 1/3 innings there over two seasons. He went 2-10 with a 2.87 ERA with 123 strikeouts and 55 walks for the Curve.

Harrison remains out of Bucs' lineup with ailing ankle

MIAMI -- Pirates manager Clint Hurdle had two potential lineups ready to face the Marlins on Friday night. One included utility man Josh Harrison and one did not.

Hurdle ended up going without Harrison for the second straight day. The status of the 26-year-old is still unclear.

Hurdle hinted before the game that Harrison had the potential to start at second base Friday, depending on how well he did in running drills. But by the time Hurdle posted the lineup, Harrison's name was left on the bench.

Harrison left Wednesday's game with discomfort in his left ankle in the third inning, but he actually sustained the injury in the first frame. After drawing a walk, he ran toward second thinking a lineout from Gregory Polanco had the chance to fall for a hit. When he had to double back to first base, Harrison said, "I turned the ankle, pretty badly."

He turned his ankle again on a play in the next inning, when he tried and failed to tag out a runner between first and second. Harrison did, at least, manage to get a runner at first.

Although Harrison's not expected to go on the disabled list, without him in the lineup, the Pirates are missing one of their best right-handed hitters. He is batting .277/.328/.471 with four homers and 12 RBIs against righties this season.

Pirates yet to announce starter for Sunday

MIAMI -- The Pirates are delaying the announcement of Sunday's starter as long as they can.

Manager Clint Hurdle said on Friday before the series opener against the Marlins that he still hasn't decided who will fill in for Francisco Liriano, who landed on the 15-day disabled list with a left oblique strain on Wednesday.

"I gave them a couple names of guys in consideration the other day," Hurdle said. "We moved one out the other day, [Casey] Sadler was one of them, [Stolmy] Pimentel's one of them, [Vance] Worley would be one of them."

Worley is rumored to get the call, especially considering he was scratched from his scheduled Friday night start for the Triple-A Indianapolis Indians. The bespectacled right-hander is 3-2 with a 4.30 ERA in 46 innings across seven starts at Indianapolis. He has struck out 43 hitters and given up just four walks.

But Hurdle said Worley isn't his only option.

Although Sadler was optioned back to Indianapolis on Thursday, the Pirates still have Pimentel to make the spot start. Pimentel was activated from the DL the day Liriano was put on it. Pimentel never made a Major League start, but he did make 148 of them in the Minors.

Worth noting

Starter Gerrit Cole (right shoulder) is scheduled to throw a side session on Sunday.

"Sunday is gonna be a big day for him," Hurdle said. "We'll at least get him to throw a little bit more."

*The Pirates' plane arrived in Miami at 3:37 a.m. ET on Friday.

Maria Torres is an associate reporter for MLB.com. Teddy Cahill is a reporter for MLB.com. Follow him on Twitter at @tedcahill. This story was not subject to the approval of Major League Baseball or its clubs.