Nottingham Forest secured a 3-1 victory over Manchester City, with Delap scoring twice against his former club to extend City's losing run.
Delap opened the scoring in the first half and added a second after the break, while Forest's third came from a late counter-attack. Manchester City's only goal was a consolation strike in the final minutes.
The result marks City's third consecutive defeat in all competitions, raising questions about their form as the season progresses.
