Caballero did so as he threw a complete game shutout while giving up just a single hit, a bloop single in the sixth, The Daily Press wrote.
"You never expect a guy to do that," Winston-Salem manager Brad Mills told The Daily Press afterward. "I've been managing five years and this is the best-pitched game I've seen."
Caballero pitched that game in his sixth professional season, third with Winston-Salem. That season also marked his last as a pro. He never made AA.
Caballero's career began in 1986, signed by the Cubs as a free agent out of his native Panama.
Caballero started with the Cubs at rookie Wytheville. He went 1-1 over seven outings, one start and ended with a 0.93 ERA.
He moved to short-season Geneva for 1987, where he went 8-4 over 14 starts, with a 2.86 ERA. He then played 1988 at single-A Peoria. He went 9-12 over 28 starts, with a 3.73 ERA.
Caballero arrived with Winston-Salem for 1989 and then stayed there over three seasons. He saw 23 outings, 17 starts in 1989, then nine starts in a shortened 1990 and then 32 outings, 13 starts in 1991. He went 6-7 over his 1991 campaign, with a 4.57 ERA to end his career.
- Newport News Daily Press, May 24, 1991: Spot starter throws 1-hitter at Pilots
Made the Majors:1,180-35.9%
Never Made Majors:2,105-64.1%
5+ Seasons in the Majors: 487
10+ Seasons in the Minors:286