Champions Manchester City fell eight points behind Liverpool in the title race after suffering a shock home defeat against Wolves on Monday (NZ time).
Winger Adama Traore scored twice in the final 10 minutes as Wolves handed City their second loss of the season.
Cit were second best for much of the game and Traore made them pay with two superb finishes to lift Wolves to 11th.
The first came in the 80th minute and the second followed in the fourth minute of injury time to inflict only a fourth league defeat at home under Guardiola.
"We did not make good process, we had problems in that sense," Guardiola said.
"We are a team that plays a specific way but it is a bad day, that happens sometimes.
"When you win games, you think about the other one. Now we have an international break, then can come back and go to the other games."
Elsewhere, there is more pressure on Manchester United boss Ole Gunnar Solskjaer after a 1-0 loss at Newcastle left his side in 12th place.
Matty Longstaff scored on his debut as the win helped Newcastle move out of the bottom three.
The 19-year-old fired the only goal from long range 18 minutes from time to lift Newcastle, managed by United great Steve Bruce, to 16th.
Manchester United are five points off fourth-placed Leicester but only two above the relegation zone.
Meanwhile, Arsenal are a point behind City in third after a 1-0 win over Bournemouth while Chelsea won 4-1 at Southampton to move up to fifth, a further point back.
AAP
