Defending champion Barcelona was held to a 1-1 draw by Osasuna on Saturday.
“Sometimes chances are taken, and sometimes they are not. A lot of circumstances led to the own goal, but their only other threat in the second half was from Nekounam’s free-kick,” Guardiola said in the post-match news conference.
“Last week Osasuna conceded in the last minute, and this week they equalized. This is football,” he added.