The only reason I'm not giving this episode a 10 is because of the stadium scenes. All the scenes with the uncover work and building Desi cover I.D. was a solid 10 but the stadium scenes brought the episode down and as a big football fan seeing Desi just run on to the field withing the referee stopping the game as brought the episode down.
On a more positive note, Desi looked stunning in the blue dress in the gambling scene. I really thought Mac and Riley would have a shot at a relationship but thanks to the Merchant putting Desi's life at risk. MacGyver seems he's not completely over Desi. Lastly, if the Titan turned out to be Matty it would be a disappointment because it would the second time the team got betrayed their boss. The first being Patricia Thornton.