Shia in Stitches on "Transformers" Set

The name is Shia LaBeouf. Official translation: Accident prone.

Sources tell TMZ Shia was injured by a prop on the set of "Transformers" -- we're told he got a cut below his eyebrow that required stitches.

After getting sewn up, he went right back to work. Injured hand, injured eyebrow -- no problemo.

We contacted Shia's rep, who said "No comment."