Lorenzen's availability for his scheduled start Friday in Baltimore is up in the air due to a physical issue, Jeff Fletcher of The Orange County Register reports.
The 30-year-old surrendered eight runs (seven earned) over three innings during his last start July 1, though it's unclear when the unspecified issue first surfaced. Reid Detmers has joined the Angels on the taxi squad and is poised to start Friday should Lorenzen be unable to take the mound.