Javy Guerra has been optioned to AAA after a rough spring in which he dealt with injury and had been limited to just a couple of appearances. The Dodgers have a deep pen and, with Guerra’s injuries and struggles, he was going to have to excel during Spring Training to secure a spot on the Opening Day roster.

Tony Gwynn Jr. was also assigned to AAA Albuquerque. Gwynn was one of the few guys with the ability to backup Matt Kemp and previous big-league experience doing so, but the move reinforces just how little Tony can swing the lumber and the fact that the Dodgers clearly have faith that Carl Crawford will be healthy enough to serve as the number two center fielder.

Shawn Tolleson and Justin Sellers were optioned to AAA, while Jesus Flores was reassigned to minor-league camp. Additionally, Chris Withrow was optioned to minor-league camp along with Juan Abreu and Wilkin Castillo.

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The team released three players in Dallas McPherson, Ramon Castro, and Nick Evans.

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On the flip side of things, the team has signed Dashenko Ricardo of Curacao to a contract after Dashenko participated in the World Baseball Classic.

Along with Ricardo came the signings of Dominican prospects Dennis Santana and Carlos Aquino – both shortstops – and lefty Cesar Romero.

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Tim Federowicz has probably locked up the job of backing up A.J. Ellis with the removal of Jesus Flores from major-league camp.

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Greg Zakwin is the founder of the site Plaschke Thy Sweater Is Argyle. Follow him on Twitter @ArgyledPlaschke.

The Dodgers made their first four cuts of Spring Training, with Dallas McPherson, Nick Evans, Ozzie Martinez, and Kelvin De La Cruz getting their assignments to minor-league camp.

Later, Gregory Infante was reassigned to minor-league camp, and the club released lefty Wander Beras.

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44-year-old lefty Tsuyoshi Shimoyanagi worked out at the open tryouts the Dodgers held at Camelback Ranch. He failed that tryout and wasn’t offered a contract.

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Javy Guerra decided to play for Mexico in the World Baseball Classic.

Dodgers reliever Javy Guerra said he will be a late addition to Team Mexico’s entry in the World Baseball Classic after Cleveland closer Chris Perez left the roster for Team USA due to injury.

However, he later had to drop out because of liability concerns involving his shoulder.

Guerra, who was added to the Mexican team last week because other pitchers dropped out, was taken off the roster Wednesday because of liability issues resulting from his offseason shoulder surgery, Guerra said.

It’s for the better anyway.

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Don Mattingly is trying Juan Uribe out at first base in Spring Training as the Dodgers appear desperate to find some way to keep him on the 25-man roster.

“I expect it to really be pretty good, other than not necessarily having played there being a little uncomfortable for him,” Mattingly said. “His hands work. He’s always had a good feel for the game, and timing. I really expect him to be pretty good and be able to do this if he’ll put a little time on it, and pay attention to what he’s doing.”

So Mattingly doesn’t see Uribe struggling during the transition to a position he’s never played before, which is funny, considering this GIF.

“Unless we have a better option, he is under contract so it’s not one of those situations where I can just say this doesn’t work,” Mattingly said. “My job is to get everyone prepared the best we can with the guys that we have. I’m going to try to take the roster as we see it or the possibilities of it, and try to get the absolute most out of that.”

So Mattingly doesn’t seem interested in suggesting the release of Uribe.

Swell.

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Greg Zakwin is the founder of the site Plaschke Thy Sweater Is Argyle. Follow him on Twitter @ArgyledPlaschke.

The Dodgers have dealt John Ely to the Astros in exchange for minor-league lefty Rob Rasmussen.

Rasmussen, a SoCal native and UCLA graduate, was selected by the Dodgers in the 27th round of the 2007 draft but declined to sign and instead became a Bruin. He was drafted by the Marlins in the 2nd round of the 2010 draft and acquired by Houston in 2012 as part of the Carlos Lee deal.

John Sickels of Minor League Ball gave his thoughts on the deal for both teams here. A detailed report on Rasmussen, soon to be 24, can be found here from True Blue LA.

Rob profiles as a relief pitcher and adds some lefty depth to the organization. He’s been emphatic in his joy following the deal:

Speechless/incredibly excited to be a Dodger, truly a dream come true!

— Rob Rasmussen (@RasmussenRob) December 19, 2012

For a kid who lived 10 minutes from the stadium, and saw the likes of Piazza and Nomo, I couldn’t be happier than I’ve been all day today

— Rob Rasmussen (@RasmussenRob) December 20, 2012

Ely, who was merely organizational depth with the Dodgers and profiles as such going forward, was a small price to pay for a flier on a small lefty with some upside.

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Scott Van Slyke has cleared waivers and been outrighted to AAA Albuquerque.

While Van Slyke is probably just a bench player or perhaps a one-year stopgap for a rebuilding team, I’m surprised nobody took a chance on him.

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The Dodgers have signed former Angels third baseman Dallas McPherson to a minor-league contract with an invitation to Spring Training.

Over 10 seasons, McPherson owns a career minor-league line of .289/.370/.563/.933, but a career major-league slash line of just .241/.292/.446/.738 with a .316 wOBA while whiffing in an unseemly 32.1% of his plate appearances.

Over the past six years he’s amassed just 30 plate appearances and appeared in 22 games in the bigs. That doesn’t even tell the whole story though, as Dallas didn’t taste MLB ball in 2007, 2009, 2010, and 2012 due to a combination of injuries and ineffectiveness.

McPherson profiles as a classic AAAA player.

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Ryu Hyun-jin: It was assumed he would not participate in the WBC and that assumption was confirmed today with the replacements being named.

— Dan (@MyKBO) December 21, 2012

The Dodgers have announced their minor-league staff for 2013.

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Greg Zakwin is the founder of the site Plaschke Thy Sweater Is Argyle. Follow him on Twitter @ArgyledPlaschke.