Updated

Oscar Pistorius' lawyer says a pathologist will likely testify first when the double-amputee athlete's defense team starts calling witnesses at his murder trial next week.

Lawyer Brian Webber said in an email to The Associated Press that the defense plans to start by calling Prof. Jan Botha when the trial resumes Monday after a week's adjournment.

Pistorius was expected to open defense testimony but Botha will likely be called first because Webber said the pathologist has some "personal difficulties."

In South Africa, defendants who indicate they will testify are expected to go first.

Pistorius and his lawyers say he will testify and explain in court how he killed girlfriend Reeva Steenkamp by accident on Valentine's Day last year. Prosecutors have charged him with premeditated murder.