Oliver and Roy work to stop a bomb planted by Count Vertigo at a boxing match in episode 3x01 "The Calm".
Oliver is knocked out by the Bratva after defeating their champion in episode 5x01 "Legacy". Oliver talks with Anatoly Knyazev after passing the first test before he passes out in episode 5x02 "The Recruits".
Anatoly and Oliver attack the ice rink where Gregor is meeting with his lieutenants in episode 5x16 "Checkmate".
Oliver confronts Adrian Chase as the Arrow beneath City Hall and Chase says he has Susan Williams locked away in episode 5x16 "Checkmate".