Though note that his response to recognising Justin and Sally-Anne is "must train!" and "damn!", respectively. (I'm wondering if the 'damn' was that she was involved or that she was hit with something that could have killed her.)

(Given Justin was one of the few - only? - not-one-shot-KOs, that rather backs up the bit where Dolohov and the Order have separately said he has a particularly good head for combat....)