6x20 Anatoly Knyazev Redemption

Theory
In the synopsis of episode 20 of season 6, otherwise known as "Shifting Allegiances", it says that Oliver Queen, otherwise known as the Green Arrow, turns to an old friend for help. Over the time before the episode it has been confirmed that that old friend will be Anatoly Knyazev. But since Anatoly is on the side of Ricardo Diaz, otherwise known as The Dragon, it got me thinking that this could be a redemption arc for Anatoly.

Redemption
Anatoly maybe doesn't agree with Ricardo anymore because he doesn't get enough profits out of the work they do. This could maybe cause to Anatoly giving Oliver information about Ricardo when asked to do so.

Oliver also could convince Anatoly to switch sides. This could be with money, threatening or with promising him a position back into the Bratva in Russia. Anatoly could also possibly be convinced by memories of Oliver and him back on Lian Yu on how they fought together against Slade Wilson, otherwise known as Deathstroke, and other villains on the island.

Anatoly could also switch sides because of him being an honest man and realising that Ricardo isn't. In this case he probably gives up helping Ricardo.

Verdict
In episode 20 of season 6, otherwise known as "Shifting Allegiances", Anatoly helped Oliver escape because Ricardo Diaz wasn't an honest man. Which hereby confirms that one of my theories was indeed correct.