Alexander (ribs) fired a scoreless seventh inning in Triple-A Las Vegas' win over El Paso on Tuesday, recording a strikeout.

Alexander (ribs) threw live batting practice to Miguel Andujar (knee) on Tuesday and is now set to join Single-A Stockton to begin a rehab assignment Friday, MLB.com reports.

Alexander (ribs) is expected to throw live batting practice Tuesday, Martin Gallegos of MLB.com reports.

Alexander (ribs) threw a successful bullpen session Tuesday, the Associated Press reports.

Alexanders (ribs) is tracking toward a rehab assignment sometime next week, Martin Gallegos of MLB.com reports.

Alexander (ribs) is projected to throw a bullpen session in coming days, MLB.com reports.

The Athletics placed Alexander on the 15-day injured list Thursday with a left rib contusion.

A's manager Mark Kotsay said Friday that Alexander (ribs) isn't expected to resume mound work before the end of camp, Martin Gallegos of MLB.com reports.

Alexander signed a one-year contract with the Athletics on Wednesday, Martin Gallegos of MLB.com reports.

The Giants placed Alexander on the 15-day injured list Saturday with a left hamstring strain.