Jon Lester's rumored contract demands didn't fuel the Boston Red Sox to discuss the left-hander in trades, according to his agent.

A published report claimed that the Red Sox were prompted to listen to offers for Lester once informed of what it would take to re-sign him.

"The discussions we had with the Red Sox were confidential and will remain that way," Seth Levinson, Lester's agent, said. "There is no truth to the report, and I am not going to guess why it was written or the basis for that report."

The report, published in The Boston Globe, citing a major league source, went on to say that Lester was seeking "a competitive offer consistent with the market" and speculated that would be in the range of $22 million to $24 million annually.

Rusney Castillo had 28 Major League teams watch him during his showcase this weekend.

The 27-year-old Cuban free agent will reportedly work out privately for four teams -- The Boston Red Sox, New York Yankees, Philadelphia Phillies and Baltimore Orioles.

The Red Sox had the largest contigent on hand for Castillo's workout, according to sources.

Free-agent catcher A.J. Pierzynski has reached a deal with the Cardinals, a source confirmed to ESPN.com's Jerry Crasnick. 

The St. Louis Post-Dispatch earlier reported the move Friday, citing multiple sources. Pierzynski is expected to join the Cardinals in Chicago on Saturday.

Cuban outfielder Rusney Castillo will showcase himself for Major League teams on Saturday.

He will reportedly work out at center field and shortstop.

The Minnesota Twins, Chicago Cubs, Chicago White Sox, Atlanta Braves, San Francisco Giants, Seattle Mariners, Baltimore Orioles, Tampa Bay Rays, Miami Marlins, New York Yankees, New York Mets, Boston Red Sox, Texas Rangers and Houston Astros have all been linked to Castillo.

Boston Red Sox president Larry Lucchino confirmed Thursday morning that the team and Jon Lester have agreed to table contract negotiations until after the season.

"It's done in part out of respect for Jon Lester and his desire to postpone this until after the season," Lucchino told WEEI. "He's on an extraordinary roll. His last five or six games, his ERA is I don't know, 0.90 or something like that.

"He's leading this team, leading the rotation, and his very strong preference ... was not to have his family and himself distracted and focused on something other than pitching and winning baseball games."

Red Sox owner John Henry made a similar proclamation Wednesday night in an email to the Boston Herald.

Lester told the Boston Globe on Thursday that the postponement of the contract talks won't impact his desire to stay with the Red Sox -- even for a relative discount.

"Doesn't mean anything," Lester said told the Globe. "There's been plenty of guys who have taken less to come back. Mikey Lowell had more years and money with the Phillies, and he came back. It's not the end-all for everybody. I've expressed to them I want to be here."

The Boston Red Sox have not spoken to Koji Uehara about a contract past the 2014 season.

"So far, there have been no talks," Uehara said through translator C.J. Matsumoto. "I'll leave it all up to my agent, but right now I haven't heard anything."

Uehara is 39, but there is some thought that the Red Sox may consider offering the pitcher a qualifying offer in the coming offseason (estimated to be around $15 million for one year).

Since becoming the Red Sox closer on June 26, 2013, Uehara has saved 40 of 44 regular-season games, striking out 118 and walking just eight. His ERA over that span is 1.00 with a batting average against of .139.

The Minnesota Twins have engaged in talks with Kurt Suzuki about a contract extension, but the two sides are far apart.

The negotiations have been characterized as "exploratory."

If the Twins aren't able to extend him, Suzuki could be a significant trade chip ahead of the July 31 non-waiver trade deadline.

The San Francisco Giants have agreed to a Minor League deal with Dan Uggla, who was released by the Atlanta Braves three days ago.

Uggla will be assigned to Triple-A Fresno, according to a source.

The 34-year-old was batting .162 with two home runs and 10 RBIs in 48 games and 130 at-bats.

The Washington Nationals are nearing an agreement with first-round pick Erick Fedde and one is expected to be reached before Friday's deadline.

Fedde's signing bonus will be between $2.5 million and $2.6 million, according to reports.

Fedde was projected as a potential top 10 pick last month before the news surfaced that he would require Tommy John surgery.

The Atlanta Braves released Dan Uggla before Friday night's game.

A cooresponding move will be made soon. Uggla was suspended for a game by the team last week.

Uggla was hitting .162/.241/.231 in 145 plate appearances this season.