Jerry Sandusky's lawyer says the former Penn State assistant football coach will testify during an upcoming appeals hearing about whether he was improperly convicted four years ago.

Sandusky attorney Al Lindsay said Thursday he expects Sandusky to testify at length in the three-day Post-Conviction Relief Act hearing that gets underway Friday in a Pennsylvania courthouse.

The 72-year-old Sandusky didn't take the stand during his 2012 trial, a decision that's among the issues he's raised in arguing his lawyers didn't represent him adequately.

Sandusky was convicted of sexually abusing 10 boys and sentenced to decades in state prison. Eight victims testified against him.

The three-day appeals hearing in the Centre County Courthouse near State College will continue on Aug. 22.

Sandusky previously lost direct appeals to state Superior and Supreme courts.