The Ivorian is one of two changes Mourinho has made from the starting XI that went on to win a thrilling Manchester derby last weekend against City.
They clinched the silverware 24 hours later thanks to West Brom forward Jay Rodriguez's 73rd minute header at Old Trafford although Guardiola may have missed the crucial moment after opting for a round of golf with his son instead.
"Manchester City, we won it for you" chanted West Brom fans at full-time as United supporters began jeering in frustration at their side gift-wrapping the title for City.
"West Brom is a club I care about a lot", he said.
"They were the right ones and the ones we believed in, I'm sure there are differences to how we play today compared to Bayern (Munich) and Barcelona, we survive and live by the strength of the team".
"I'm not going to stand here and say we didn't deserve what happened", he added.
Freezing rain coats CNY cars with ice, winter weather advisory issued
Several communities around Metro Detroit have issued winter weather alerts overnight into Sunday as storms continue in the area. Despite 60-degree temperatures on Friday, it looks like winter weather will be making a return to the Bay State this weekend.
Aymeric Laporte and John Stones have been decent this season but with their lack of defensive cover, the newly crowned Premier League champions might get into deep trouble next season.
"Eight titles are eight titles and three Premier Leagues are three Premier Leagues".
"Unbelievable season for us", said midfielder Kevin De Bruyne, perhaps City's standout player over the past eight months.
"I trust in my work", he said. City's other two Premier League triumphs, in 2012 and '14, were sealed on the final day.
The Red Devils lead third-placed Liverpool by just one point, although they do have a game in hand, but with Liverpool hitting their stride of late, Mourinho's men will come under pressure to hold onto second spot as the season nears a close. I win titles. My last Premier League title was not 20 years ago, it was three years ago.
Guardiola is the first Spaniard to win the English title. In the 33 PL matches played so far, the Etihad outfit has won 28 and has lost just 2 matches, while there were 3 games that resulted in a draw. The goalkeeper has shown that he possesses the quality to play in the top flight, making four saves to deny Manchester United a point.