Press Association Any hope of Roberto Mancini’s side retaining the Barclays Premier League title appeared to go up in smoke on Saturday after they suffered an embarrassing 3-1 defeat at Southampton. City goalkeeper Joe Hart said in the build-up that anything but victory at St Mary’s was likely to hand Manchester United the title. “Some days, nothing works the way it should,” Argentina international Aguero said via his Twitter account, @aguerosergiokun. “This was one of those days. There’s no excuse – we need to work hard to forge ahead. It all looks a bit grim right now, but I won’t believe giving up is an option.” They were sentiments echoed by captain Kompany, who was forced to watch the defeat on the south coast from the stands due to injury. “Our fans sang and stood behind us all game yesterday, despite losing,” he said on Twitter. “Just reminds me that there will always be a lot to play for. #MCFC !!” Sergio Aguero admits things look a “bit grim” for Manchester City right now, although captain Vincent Kompany believes there is still a lot to play for.