Wells, who went on the 15-day disabled list on May 10 with a strained right groin, figures to be sidelined for at least three more weeks.
"We're not going to get a good read on this thing for a couple weeks," Scioscia said before Sunday's series finale against the Rangers in Wells' hometown. "The soreness has diminished, but until he gets in active rehab we're not going to know yet."
As for Scott Kazmir, he pitched in a camp game in Arizona on Saturday, but "it was not a real positive outing," Scioscia said. "He's going to stay back and try one more.
"I think he's slowly figuring some things out. We just reviewed some film and his delivery looks fine. Only he can feel the right balance. His health is OK."
Kazmir made one start in Kansas City and has been on the disabled list with lower back soreness since April 4.