Collateral Damage Daily for September 21

Mark Teixeira is progressing after aggravating his left calf strain a few weeks ago. He will start playing in instructional league games on Monday and hopes to return for the final series of the season. … Carlos Quentin returned on Wednesday but was back out of the lineup on Thursday because of his right knee. He is expected to be used sparingly for the rest of the year. … Asdrubal Cabrera aggravated his right wrist Wednesday and is expected to miss several days at least. … Max Scherzer has improved but will most likely be skipped on Sunday. Drew Smyly would take his place. … Josh Hamilton is flying back to Texas for further testing after missing the last few days with blurry vision and sinus troubles.

Additions

• Brett Anderson will miss the rest of the regular season after suffering a grade II strain of his right oblique muscle on Tuesday night. Tightness set in during the second inning of his start. In the third inning, he lost his footing on the mound and really felt his oblique grab. He could come back in the playoffs, but it might prove difficult to get him back in time given the average oblique injury to a starting pitcher takes about 34 days to heal.

Subtractions

• Chris Carpenter is expected to be activated from the disabled list today a little more than two months after undergoing surgery. He is returning much sooner than anyone expected and might be able to make three starts over the next few weeks. He is still working his way to full endurance, so don’t expect him to be pushed deep into games.
• Jorge De La Rosa was activated from the 60-day DL yesterday after spending the season recovering from Tommy John surgery last June. He threw 70 pitches, allowed six runs, and was clearly rusty in his return. He is expected to make a few more starts before the end of the year.
• Huston Street is expected to be activated today after missing 41 days recovering from a strained left calf. He should slot back into the closing role, taking over for Luke Gregorson who has performed well in his absence. Street has missed close to half the season with two injuries.
• Troy Patton is expected to be activated from the disabled list today after he missing 39 days with a sprained ankle.
• The Orioles are planning to activate Jim Thome today after he underwent an epidural a few weeks ago and a long rehab from a herniated disc. The disc itself is not healed, but the inflammation surrounding the area has calmed down enough to allow Thome to return. It is something that could need surgery in the coming years, but for now, he should help a lineup that suffered the loss of Wilson Betemit and Nick Markakis.