GLENDALE, Ariz. – The way Donnie Hart tells the story, he was a natural sidearm pitcher before he realized it for himself.In 2013 he was a junior at Texas State University. One day, while taking ground balls at first base, the Bobcats’ pitching coach noticed Hart throwing from a lower arm slot to second base. The motion came naturally to the left-hander, yet he’d never tried pitching sidearm in a game.“He said, ‘let’s go see if that will work out in the bullpen,’” Hart said. “So we went down there and I threw off the mound like that, two bullpens. The rest was pretty much history.”The Baltimore Orioles selected Hart in the 27th round of that summer’s draft. He debuted with the Orioles in 2016. His arm slot has gotten lower over the years, but Hart can trace the origin of his path to the big leagues to one day in college. “There are things that go on in a series where you talk to guys,” Hart said. “The scouting report may not lend you something that you may see in a three-game series against a team where a guy’s really hot but his numbers may not show that. That had its struggles in it as well.“But you’re in panic mode a lot of times. You get a phone call at 1 in the morning, you’ve got to pack your bags, get your equipment up and fly that morning. It throws you out of your routine in a sense. I did it so much I was able to somewhat find a routine in all that chaos. It’s easy to use that as an excuse. I’m not going to.”Unlike Fields, Hart has one option year remaining. He has a decent chance to add to his collection of frequent flier miles in 2019. Norfolk and Baltimore are only an hour apart by plane, while Los Angeles is a 3-hour flight from Triple-A Oklahoma City.To bring the origin story full-circle, the pitching coach who first encouraged Hart to try a sidearm delivery – Jeremy Fikac – is now his agent.“I’m almost certain I wouldn’t be here right now if it wasn’t for making that decision,” he said.BUEHLER GETTING CLOSERWalker Buehler threw 20 pitches to two teammates, Omar Estevez and Brad Miller, in his first work against live batters this spring. Russell Martin caught.Estevez saw three pitches in each simulated at-bat and struck out both times. Miller had a little more luck, hitting a hard grounder back to the pitcher’s mound, then a line drive that bounced off the protective screen behind Buehler.The Dodgers have decelerated Buehler’s timetable for debuting in 2019. He threw a career-high 177 innings (regular season and postseason combined) in 2018.Dodgers manager Dave Roberts said that Buehler will throw to teammates once more before his Cactus League debut.KERSHAW UPDATEClayton Kershaw played catch up to approximately 150 feet on flat ground. For the third consecutive day, he also threw from a windup at a distance of 60 feet, but he hasn’t thrown off a mound in weeks.The Dodgers haven’t announced when Kershaw will throw a bullpen session next, or make his first Cactus League start. The left-hander is recovering from a shoulder injury early in camp.With less than three weeks remaining before Opening Day, Roberts conceded that “the regular ramp-up” to the regular season is out of the question for Kershaw, “but that doesn’t close the door on Opening Day.”Left-hander Hyun-Jin Ryu, who threw three shutout innings against the Royals on Friday, is on a schedule that lines him up for Opening Day. Roberts said Thursday that Ross Stripling will jump into the rotation first if Kershaw (or any other pitcher) starts the season on the disabled list.Kershaw has started the Dodgers’ first game every season since 2011. The decision of who starts Opening Day, Roberts said, is “purely 100 percent practical.”“It’s great and it’s a tribute to (Kershaw’s) career and longevity,” Roberts said, “but speaking for Clayton, the most important thing is he pitches when he’s ready. That’s just a cherry on top, to add another Opening Day start for him.”ALSOAfter catching for Buehler, Russell Martin batted in an intrasquad game against minor league pitchers J.D. Martin and Mark Washington. He is scheduled to play against the Rockies on Sunday, his first Cactus League action since Feb. 26. Martin has been recovering from a back injury. … Dodgers Spanish-language broadcaster Jaime Jarrin called Saturday’s game and will not reduce his schedule in 2019 as previously planned. Jarrin’s wife, Blanca, passed away on Feb. 28. … Players from the Dodgers’ minor league championship teams received commemorative rings in a joint ceremony. Newsroom GuidelinesNews TipsContact UsReport an Error The Dodgers claimed Hart on Thursday, six days after he was designated for assignment by the Orioles. Right-hander Josh Fields was designated for assignment.In Baltimore, Hart was one of three submarine/sidearm relievers along with Mychal Givens and Darren O’Day. With an average vertical release point less than four feet off the ground, Hart is unlike any pitcher the Dodgers have had in years.After throwing his first bullpen Saturday, Hart could debut any day now.Hart posted a 5.53 ERA in 20 games with the Orioles and a 2.41 ERA at Triple-A Norfolk in 2018. From 2016-17, Hart posted a 2.76 earned-run average across 73 appearances. Why the dropoff?Part of it, Hart said, was a function of the constant shuttle between the majors and minors. Multiple times, he arrived at the ballpark after the first pitch had been thrown – only to be warming up to enter the game less than a couple hours later.