Alberto Callaspo 1B/2B.. OAK 18 Days

Alberto Callaspo (hamstring) is expected to avoid the disabled list, but is unlikely to return to the Athletics lineup over the weekend.

Callaspo sustained the injury while running to first base during his first at-bat on Friday. The veteran infielder is confident that his hamstring strain isn't serious and that he'll be able to return to the lineup after the All-Star break.

Alberto Callaspo 1B/2B.. OAK 19 Days

Alberto Callaspo was removed from Friday's contest against the Mariners with a strained right hamstring.

Callaspo sustained the injury while hustling down the first base line during his only at-bat of the night. The injury doesn't sound serious, so consider the valuable utility man day-to-day.

Alberto Callaspo 1B/2B.. OAK 23 Days

Alberto Callaspo finished 2-for-4 with a double and two RBI in a win over the Giants on Monday.

This was a much needed positive showing from a player who had hit the skids since the last day of June, slashing .080/.077/.120 in 26 plate appearances over his past seven games. Callaspo will have to continue hitting to hold onto his second base gig. He's slashing .236/.314/.310 overall to go with three homers and 29 RBI.

Alberto Callaspo 1B/2B.. OAK 1 Month

Athletics manager Bob Melvin confirmed on Saturday that Alberto Callaspo has taken over as the team's primary second baseman.

Callaspo has seized the job with a .390/.435/.439 batting line over his last 11 games. "He's made his own opportunities," Melvin said of Callaspo. "He's swung the bat better, his defense looks a lot better. A guy who played some middle infield almost exclusively early in his career seems like he's getting acclimated to it again after playing third base for a number of years. ... Based on the fact he's had really good at-bats, consistent at-bats, he's warranted the at-bats he's getting right now."

Alberto Callaspo 1B/2B.. OAK 1 Month

Athletics activated INF Alberto Callaspo from the paternity leave list.

Callaspo missed the A's weekend series with the Yankees for the birth of his third child. The 31-year-old utility infielder is batting .218/.314/.299 this season.

Alberto Callaspo 1B/2B.. OAK 2 Months

Athletics placed INF Alberto Callaspo on the paternity leave list.

He'll miss the weekend series with the Yankees because he is having his third child. Andy Parrino has taken Callaspo's spot on the roster.

Alberto Callaspo 1B/2B.. OAK 2 Months

Alberto Callaspo will miss the A's weekend series with the Yankees because he is having his third child.

Callaspo is going to be placed on the paternity leave list Friday so the Athletics won't have to play a man short against the Yanks. He currently holds a .219/.313/.301 batting line with three home runs and 20 RBI.

Alberto Callaspo 1B/2B.. OAK 2 Months

Alberto Callaspo will miss this weekend's series against the Yankees in order to be with wife as she gives birth.

He'll be placed on the paternity leave list, but there's been no decision yet on who will take his spot on the roster. Callaspo entered play Monday batting just .225/.320/.309 this season.

Alberto Callaspo 1B/2B.. OAK 2 Months

Alberto Callaspo went 1-for-3 with two walks and three runs scored in a win over the Orioles on Sunday.

Callaspo doubled off reliever Brad Brach, his seventh double of the year. He's been a Swiss army knife for the A's this year, seeing time at first, second and third base while seeing time at designated hitter as well. The utility player is batting .225/.320/.309 on the season.

Alberto Callaspo 1B/2B.. OAK 3 Months

Athletics manager Bob Melvin said Friday that Alberto Callaspo will see a drop in playing time following the acquisition of Kyle Blanks.

Callaspo has received most of his starts in the DH spot and at first base, but that's where Blanks is going to play. Callaspo has been a borderline middle infield option in mixed leagues so far this year, but he's probably only an AL-only guy at this point.