Meanwhile, outfielder Jeff DaVanon, who suffered a fractured nose Wednesday night when a ball ricocheted off the Turner Field wall into his face, was seen in New York by ear, nose, and throat specialist Dr. Phillip Miller. Dr. Miller set the fracture and placed the nose in a cast.
The cast will remain on for four or five days, while DaVanon's playing status will be determined on a day-to-day basis.
Escobar's injury, which seems to be more serious than DaVanon's, could force the Angels to recall young righty Ervin Santana, who went 1-1 with a 4.15 ERA in two starts for the Angels, including an electrifying shutout of the Chicago White Sox in Angel Stadium.
Escobar's bone spur has been manageable for the most part, but when it rubs against a tendon it creates a lot of pain, and Escobar was overwhelmed Wednesday.
"It feels the same; the same pain that I had three weeks ago," Escobar said Wednesday. "I'm frustrated. I've never been through this before."
Escobar, who had allowed only one run and seven hits over his previous two starts since coming off the DL, was undone by a 40-pitch fourth inning, during which he uncorked two wild pitches, one allowing a run to score, and hit a batter. He also allowed an RBI double to Adam LaRoche and a two-RBI double to Ryan Langerhans.
"It hurt me a little bit in the third inning, and it got worse in the fourth inning," Escobar said. "I got in trouble I think throwing so many pitches. I got out of that inning, but I don't think I could have gone out the next inning."
Escobar has mentioned the possibility of surgery, which would likely keep him out of action for six to eight weeks, but the Angels will wait for more information before they make their next decision.
DaVanon made it clear after Wednesday's game that he does not want, or expect, this injury to put him on the DL.