USC’s offensive line wasn’t all that deep when it started in August with 14.

But today on the way out to practice, that number will be seven — healthy bodies able to go all-out.

With injured and limited players, make that 10, or one-deep Pete Carroll said, when the teams split up into offense and defense.

Here are the “healthy” ones: Jeff Byers (broken thumb), Matt Spanos (torn triceps, gashed finger), Tiny Malu (hamstring), Butch Lewis (ankle sprain), Drew Radovich, Alex Parsons and Thomas Herring (ankle sprain).

The other seven, starting with All-American Sam Baker’s hamstring pull, are far worse off than the above. Will all the more injured return for Notre Dame Saturday, Carroll was asked.

“They won’t,” he said. Not all of them.