The focus in the last few weeks has been on signing young players on long-term deals with potential to make an impact in the future.

Atlanta left-back Caleb Wiley, 19, is now closing in on an £8.5m move to Chelsea, Boca Juniors centre-back Aaron Anselmino, also 19, is expected to follow and FC Basel midfielder Renato Veiga, 20, will conduct a medical in London on Wednesday before completing a £12m move.

Wiley will join Strasbourg on loan, Anselmino will likely stay at Boca until at least January while Veiga will join Chelsea on pre-season but could be loaned out at a later date.

Veiga is one of many players under evaluation by Maresca, who wants to give everyone a chance, before making decisions on transfers in and out.

The new Blues manager begun pre-season training yesterday and wants a look at his striking options – with Nicolas Jackson, Christopher Nkunku and new signing Marc Guiu already on the books.

Their performance and fitness levels in pre-season will dictate whether Chelsea push to sign another striker. Atletico Madrid striker Samu Omorodion was subject to an initial bid from Chelsea and senior staff have asked Lille forward Jonathan David’s representatives for information ahead of a potential move.