Manchester City manager Pep Guardiola was left to rue a second-half collapse by his side after a bright opening hour as they succumbed to a 2-1 Premier League defeat at Brighton & Hove Albion on Sunday, Reuters reported.

City led in the first half through an Erling Haaland goal on his 100th Premier League appearance and looked in control for 60 minutes until a James Milner penalty brought the hosts level. 

As Brighton's intensity increased, City failed to cope with their movement and conceded again late on to Brajan Gruda's fine individual goal.

"We concede the goal and after that, it (the momentum) shifted," Guardiola told Sky Sports. "Until then it was really, really good, we had chances and the team looked aggressive and dynamic, according to Reuters.