In one of the biggest WTF moments of Blood Debts, we got to see John Diggle let his fists do the talking as he beat the tar out of his own brother. Diggle has shown that he isnt afraid to mix it up when called for, but laying a beatdown on his brother Andy likely took many long-time Arrow fans by surprise. Weve seen that Diggs relationship with his brother has been majorly fractured after the revelation that the totally-dead-Andy was totally-not-dead and rather than a war hero was a no-good criminal now aligned with Damien Darhk. The one good thing to come out of this was that Johns wife Lyla saw the damage to her husbands knuckles, which prompted her to encourage him to use a different approach when it comes to his younger brother.