| Player | Age | Positions | Yr | Tm | AB | H | 2B | 3B | HR | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Paul Bako | 37.7 | C | 2009 | Phillies | 116 | 26 | 4 | 0 | 3 | .224 | .308 | .336 | .644 |
| Michael Barrett | 33.4 | C | 2009 | Blue Jays | 18 | 3 | 0 | 0 | 1 | .167 | .211 | .333 | .544 |
| George Kottaras | 26.8 | C | 2009 | Red Sox | 93 | 22 | 11 | 0 | 1 | .237 | .308 | .387 | .696 |
| Guillermo Rodriguez | 31.8 | C | 2009 | Orioles | 5 | 0 | 0 | 0 | 0 | .000 | .286 | .000 | .286 |
| Javier Valentin | 34.5 | C | - | DNP in MLB | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| Vance Wilson | 37.0 | C | - | DNP in MLB | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| Date | Player | Positions | Note | Signed Team |
|---|---|---|---|---|
| 10/26/09 | Kenji Johjima | C | Signed to play in Japan | Japan |
| 11/16/09 | Ramon Hernandez | C | Re-signed with club | Reds |
| 11/30/09 | Jason LaRue | C | Signed Major League Deal | Cardinals |
| 12/01/09 | Brian Schneider | C | Signed Major League Deal | Phillies |
| 12/03/09 | Chris Coste | C | Signed Major League Deal | Mets |
| 12/03/09 | Henry Blanco | C | Signed Major League Deal | Mets |
| 12/04/09 | Gregg Zaun | C | Signed Major League Deal | Brewers |
| 12/08/09 | Ivan Rodriguez | C | Signed Major League Deal | Nationals |
| 12/11/09 | Jason Kendall | C | Signed Major League Deal | Royals |
| 12/16/09 | John Buck | C | Signed Major League Deal | Blue Jays |
| 01/04/10 | Miguel Olivo | C | Signed Major League Deal | Rockies |
| 12/14/09 | Ramon Castro | C | Signed Major League Deal | Blue Jays |
| 01/15/10 | Mike Redmond | C | Signed Major League Deal | Indians |
| 01/22/10 | Bengie Molina | C | Signed Major League Deal | Giants |
| 01/26/10 | Brad Ausmus | C | Signed Major League Deal | Dodgers |
| 02/05/10 | Yorvit Torrealba | C | Signed Major League Deal | Padres |
| 02/19/10 | Jose Molina | C | Signed Major League Deal | Blue Jays |
| 02/20/10 | Rod Barajas | C | Signed Major League Deal | Mets |
| Date | Player | Positions | Note | Signed Team |
|---|---|---|---|---|
| 11/10/09 | Michel Hernandez | C | Signed Minor League Deal | Orioles |
| 11/13/09 | Edwin Bellorin | C | Signed Minor League Deal | Royals |
| 11/20/09 | Paul Phillips | C 1B | Signed Minor League Deal | Rockies |
| 11/25/09 | Paul Hoover | C | Signed Minor League Deal | Phillies |
| 12/04/09 | Chad Moeller | C | Signed Minor League Deal | Orioles |
| 12/08/09 | Robinzon Diaz | C DH | Signed Minor League Deal | Tigers |
| 12/13/09 | Raul Chavez | C | Signed Minor League Deal | Blue Jays |
| 12/14/09 | Eliezer Alfonzo | C | Signed Minor League Deal | Mariners |
| 12/15/09 | Jamie Burke | C | Signed Minor League Deal | Nationals |
| 12/18/09 | Matt Treanor | C | Signed Minor League Deal | Brewers |
| 12/21/09 | Mike Rivera | C | Signed Minor League Deal | Yankees |
| 12/28/09 | Josh Bard | C | Signed Minor League Deal | Mariners |
| 01/05/10 | Luke Montz | C | Signed Minor League Deal | Mets |
| 01/07/10 | Dane Sardinha | C | Signed Minor League Deal | Phillies |
| 01/12/10 | Luke Carlin | C | Signed Minor League Deal | Pirates |
| 01/14/10 | Mike Rabelo | C | Signed Minor League Deal | Tigers |
| 01/19/10 | Paul Lo Duca | C | Signed Minor League Deal | Rockies |
| 01/22/10 | Kevin Cash | C | Signed Minor League Deal | Astros |
| 01/22/10 | Toby Hall | C | Signed Minor League Deal | Rangers |
| 01/25/10 | Alvin Colina | C | Signed Minor League Deal | Rays |
| 01/29/10 | Gustavo Molina | C | Signed Minor League Deal | Red Sox |
| 02/01/10 | Justin Knoedler | C | Signed Minor League Deal | Giants |
| 02/02/10 | Robby Hammock | C OF LF | Signed Minor League Deal | Rockies |
| 02/11/10 | Shawn Riggans | C | Signed Minor League Deal | Mets |
| 02/24/10 | J.R. House | 1B 3B C DH | Signed Minor League Deal | Braves |
| 02/25/10 | Eric Munson | C 3B | Signed Minor League Deal | Padres |
| Date | Player | Positions | Note | Signed Team |
|---|---|---|---|---|
| 12/12/09 | Dioner Navarro | C | Signed by avoiding arbitration | Rays |
| 12/12/09 | Ronny Paulino | C | Signed by avoiding arbitration | Marlins |
| 01/05/10 | Kelly Shoppach | C | Signed by avoiding arbitration | Rays |
| 01/15/10 | Miguel Montero | C | Signed by avoiding arbitration | Diamondbacks |
| 01/19/10 | Koyie Hill | C | Signed by avoiding arbitration | Cubs |
| 01/19/10 | Humberto Quintero | C | Signed by avoiding arbitration | Astros |
| 01/19/10 | Jesus Flores | C | Signed by avoiding arbitration | Nationals |
| 01/19/10 | Wil Nieves | C | Signed by avoiding arbitration | Nationals |
| 01/19/10 | Gerald Laird | C | Signed by avoiding arbitration | Tigers |
| 01/19/10 | Russell Martin | C | Signed by avoiding arbitration | Dodgers |
| 01/19/10 | Mike Napoli | C | Signed by avoiding arbitration | Angels |
| 01/24/10 | Carlos Ruiz | C | Signed by avoiding arbitration | Phillies |
| 02/19/10 | Jeff Mathis | C | Signed, player won arbitration hearing. | Angels |