Hmmm, looks like a football "scuff" to me, but my eyes aren't what they use to be (they use to be my ears, for all you Goon Show fans).
I would be surprised if Megs Scratch X or SRP doesn't get that out, but alcohol wipes are also a good shout. Can you feel the marks with your finger nails? I.e. do they catch in anything when you run them across the mark?