Speaking to Optus Sport, Rodri said: "To be honest, I think it's in here [points at his brain]. It's the mentality. [There are] great players all over the league, all over the clubs.
"Arsenal also deserve [to win], they did an unbelievable season, but I think the difference was in here [points to his head again].
"When they came here, they faced us at the Etihad, I saw them and said: 'Ah, these guys, they don't want to beat us, they just want a draw.' And that mentality, I don't think we would do it the same way.
"And we caught them. In the end, if you give us one point, we will win the last seven, or eight games even though it's so tough. So I think [the title win] comes down to mentality."