Giants reliever Osich thriving since his call-up

Reliever Josh Osich dealt with injuries in his first three seasons in the minors before going from Double-A to the Giants in 2015. Photo: Jeff Chiu, Associated Press

Josh Osich put his pitching arm on double-secret probation this spring.

This is it, Lefty. One more injury and you and me are done with this baseball business.

It’s funny, because the guy doesn’t look fragile. Six-two, a solid 220 pounds. And he throws 98 mph, which, contrasted with much of the rest of the Giants’ pitching staff, looks like 128 mph.

And effective? Small sample size, as they say, but the Giants called Osich up from the minors Friday, and in four relief appearances he has faced 13 batters and allowed no hits.…