Manchester United remain trapped in the relegation zone despite a wild 4-4 draw, while Manchester City's title hopes suffer another blow as Arsenal extend their lead.
Liam Delap scored twice as Nottingham Forest secured an impressive 3-1 victory over Manchester City at the City Ground, inflicting a third consecutive Premier League defeat on Enzo Maresca's side.
Brighton claimed a historic 1-0 away win against Manchester City to close within two points of the Premier League leaders, while Chelsea compounded Manchester United's struggles with a 2-0 victory.
