The A’s have placed Mark Ellis, Eric Chavez and Nomar Garciaparra on the 15-day disabled list. Ellis has a strained left calf. He has played in 18 games this season for the A’s and he is 13 for 63 (.206 avg, .503 OPS) with 6 runs scored, 9 RBIs and 2 stolen bases. The A’s will likely replace Ellis with Eric Patterson who has been recalled from AAA. Patterson has played in 19 games in AAA-ball this season and he was 23 for 70 (.329 avg, .983 OPS) with 16 runs scored, 2 homers, 6 RBIs and 9 stolen bases. Eric Chavez has a strained right forearm. He has played in 8 games for the A’s this season in which he is 3 for 30 (.100 avg, .262 OPS) with 1 RBI. Nomar Garciaparra has played in 12 games for the A’s so far this season and he is 9 for 39 (.231 avg, .595 OPS) with 5 runs scored, 1 homer and 7 RBIs. A strained right calf is what is keeping Garciaparra out of action. Bobby Crosby and Jack Hannahan will likely platoon at 3B until Chavez or Garciaparra are ready to return to action. Crosby has played in 11 games this season for the A’s and he is 7 for 32 (.219 avg, .578 OPS) with 4 runs scored and 4 RBIs. Hannahan was off to a terrible start in AAA ball playing in 13 games in which he was 8 for 51 (.157 avg, .498 OPS) with 3 runs scored, 2 homers and 7 RBIs. He has also played in 5 games for the A’s this season and he is 1 for 6 (.167 avg) with a solo homer. The A’s have also recalled infielder Gregario Petit from AAA. He has played in 19 games in AAA-ball this season in which he is 17 for 71 (.239 avg, .608 OPS) with 6 runs scored, 1 homer and 3 RBIs. These injuries will further deplete a Athletics’ offense that was already having trouble putting up runs on the scoreboard.