Guardiola confirmed that Mendy will be unavailable for Sunday's match against Chelsea, adding: "His injury is not easy".
The French defender, who is recovering from injury, posted a video of himself earlier today on Instagram with the caption "Hong Kong International Airport".
Wow, I didn't know. So I don't know.
At his Friday press conference Guardiola was bemused by suggestions Mendy might be in Hong Kong.
"Before, he said I'm going for a day to Paris", Guardiola explained.
The reporter then informed Guardiola his player had posted that he was in Hong Kong.
Asked why Mendy is in Hong Kong, Guardiola said: "He's in Barcelona".
It is not the first time Mendy's social media usage has got him into hot water with Guardiola this season.
"I have to install Instagram because I don't know".
With the hashtag #WheresMendy, the France worldwide raised more eyebrows over his location in a Twitter post which appeared to suggest he was in Dubai. "I was just joking with my Uber driver, I don't want no problems Pep", he tweeted. Guardiola also responded to Aleksander Ceferin after Uefa's president claimed City lacked class for failing to attend a meeting this week regarding VAR.
"I feel they play good and try to win the games, I think they will be there until the end and we have to be there to win our games to decide the Premier League".
"But then you count leagues, Barca, Juventus, Bayern, but I'm pretty sure you understand my answer better".