The potential departure of Delap comes as part of a wider overhaul of the attacking department at Chelsea. Club directors are aiming to reduce a bloated unit that includes Nicolas Jackson and Marc Guiu, both of whom are attracting interest for loan and permanent deals.
While a permanent transfer remains the primary objective for Delap if a club meets the £50m price tag, Chelsea are also working to find resolutions for several defenders.
Negotiations are ongoing regarding the exits of Benoit Badiashile and Axel Disasi, while Tosin Adarabioyo is subject to attention from Benfica. Meanwhile, decision-makers are evaluating potential loan spells for youngsters Mamadou Sarr and Aaron Anselmino before the window closes.