Relief pitcher Colin Selby. Charles LeClaire-USA TODAY Sports

The Orioles announced Thursday that they’ve acquired right-hander Colin Selby from the Royals in exchange for cash. He’s been optioned to Triple-A Norfolk. Kansas City had recently designated Selby for assignment. The O’s transferred Kyle Bradish from the 15-day injured list to the 60-day injured list to open a spot on the 40-man roster.

Selby, 26, pitched just three big league innings for the Royals this season, allowing a pair of runs in that short time. Kansas City acquired Selby from Pittsburgh back in April, sending minor league southpaw Connor Oliver to the Pirates in return. Selby pitched 24 innings with the Bucs last year but was tagged for 24 runs in that time. To date, he’s allowed 26 earned runs in 27 MLB frames.

That’s a poor track record but also a small sample at the game’s top level. But the former 16th-round pick is no stranger to minor league success, having posted excellent numbers at the Double-A level in addition to some decent but inconsistent results in Triple-A.

Selby notched a sub-4.00 ERA with a 30.8 percent strikeout rate for Pittsburgh’s Triple-A club last season but has struggled to a 5.32 ERA in 20 Triple-A frames between Indianapolis and Omaha this year.

Missing bats is nothing new for Selby, who’s punched out 25.6 percent of his career minor league opponents. That includes some lesser strikeout rates in the lower minors when he was still working as a starter. 

Since moving up to the Double-A level and shifting exclusively to a relief role, Selby has fanned 29.8 percent of the batters he’s faced. His bat-missing arsenal, as is often the case, is accompanied by troubling command woes, however. 

He’s dished out a free pass to 12.5 percent of his combined Double-A/Triple-A opponents and plunked another five hitters. Between those walks and HBPs, he’s given first base away to about 14 percent of the hitters he’s faced in the upper minors.

Selby is in the second of three minor league option years and doesn’t yet have a full season of MLB service under his belt. If the O’s can get him straightened out, he’ll be optionable again next season and under club control for a full six seasons. 

There’s quite a ways to go before that’s even a plausible situation, but Baltimore has a knack for coaxing strong relief work from unheralded acquisitions. Its track record isn’t spotless, of course, but the O’s have unlocked next-level performances from Yennier Cano, Danny Coulombe, Cionel Perez and Jacob Webb, among others, despite middling to nonexistent track records at their time of acquisition.

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