While Fabregas is impressed by the team's progress under Mikel Arteta, he believes further reinforcements are needed to take the next step.
"I think it's funny because the other day you are watching both games at the same time and when you think about it you say, 'Wow, Man City really have like two teams basically that could win the Premier League'," he told BBC Sounds' Planet Premier League podcast.
"Arsenal don't in this regard, so for me it's a bit of everything. Yes, they do need a bit of depth to keep pushing, pushing, pushing during the season and not rely always on Saka or (Declan) Rice or (Thomas) Partey if he's injured or not or on (William) Saliba.
"But also, in my opinion and he's done really, really well but obviously it's not his main position Havertz, he's had a fantastic season, but if Arsenal can manage to get a top, top striker that can guarantee you 30 goals a season, then they will be much, much, much closer to getting it (the title)."