By Matt Leon

PHILADELPHIA (CBS) – The AA Eastern League All-Star Game is Wednesday in New Britain, Connecticut, and the AA affiliate of the Phillies, the Reading Fightin Phils, had four players named to this year’s squad. That contingent includes Seth Rosin.

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A 24-year-old right-handed pitcher, Rosin was acquired last season from San Francisco in the Hunter Pence trade. Here in 2013, he has gone 6-4 with a 4.13 ERA as a member of the Fightin Phils’ starting rotation. In 98 innings of work, he has allowed 88 hits and struck out 69 batters, while walking just 27.

“Yeah, I’m about where I hoped I’d be,” Rosin told KYW Newsradio prior to Sunday’s game in Reading. “I’m at a point right now in the season, at (now 98) innings, I’ve never been this high in pro ball before. So, my body feels good, working real hard every day and hopefully it just keeps working out.”

This is Rosin’s fourth season as a pro. While he has started in the past, this is his first season as a full-time member of a rotation.

“It’s a pretty big adjustment,” Rosin says. “But I’ve been trying to follow (fellow Reading starting pitchers) David Buchanan, Jesse Biddle, seeing how they work out, how they prepare their bodies for every fifth day. I’m just going to keep following along. Hopefully, we’re going to keep winning some ballgames.”

Reading pitching coach David Lundquist thinks Rosin has come along quickly this season.

“You’ve got a guy with a good fastball and he’s a strike thrower, he goes right at people,” Lundquist says. “He’s usually a high-inning, low-pitch count guy, changes speeds well with the slider and change-up. Three good pitches, he goes right after everyone and sees how fast he can get you out.”

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Rosin, a 6’6″ native of Fargo, North Dakota, ranks his confidence in his three pitches right now.

“Number one, probably the fastball,” Rosin says. “I think I’m pretty good at commanding that on both sides of the plate. Getting some sink when I want some, trying to throw it by guys when I want to. Number two is probably the slider. Worked on that a lot this year, trying to throw it a little harder, get a little bit more late bite on it. Then the change-up number three, just trying to get some pop-ups, some swings and misses with that one.”

Rosin had spent his entire pro career with the San Francisco organization until last year’s trade, and he says it was a crazy experience.

“I moved from California to Florida overnight,” Rosin says. “Had to leave my car and a lot of my clothes with my host family in San Jose. Coming over to a new team, new organization, having to learn names, getting use to all the new guys, new players. It was a pretty easy transition, all the guys here really included me well right away so I felt part of the team right away.”

Rosin was a 4th-round draft pick of the Giants back in 2010 out of the University of Minnesota.

The other Reading players named to the EL All-Star Game are LHP Jesse Biddle, 1B Jim Murphy and 2B Albert Cartwright.

You can follow Matt on Twitter @mattleonkyw.

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