Enzo Maresca has opened the door to Chelsea selling Nicolas Jackson this summer if Newcastle United or one of their other rivals turn their attention to the 24-year-old striker.

Newcastle have been chasing Benjamin Sesko of RB Leipzig, but Manchester United appear closer to securing the 22-year-old in a deal worth up to £74.1million.

Maresca highlighted how Chelsea have brought in two strikers this summer in Liam Delap and Joao Pedro, adding ‘we will see’ what happens with Jackson in the coming weeks.

‘Nico is okay,’ Maresca said. ‘He’s okay. When the transfer window is open, unfortunately or fortunately, anything can happen. This also involves Nico’s situation.

‘At the moment we also had two strikers arrive, both of them in the USA, Joao (Pedro) and Liam (Delap). So we will see what happens.’

As reported by Mail Sport, Chelsea are determined not to lose Jackson on the cheap, having valued him north of what Sesko is set to be sold for.

That is partly because Jackson has proven he can score in the Premier League over the last two seasons with him also tied down until 2033 after signing an extension last year.

Meanwhile, Chelsea have been dealt a blow with Levi Colwill picking up a 'problem' towards the end of their first pre-season training session on Monday.

Colwill was sent for a scan on Wednesday night with his club now awaiting the results. His injury occurred on its own and was not the result of a challenge from a team-mate.

Chelsea are concerned but must first wait to see the extent of the issue. If their fears are confirmed, they could look at bringing in a centre back this month.

Maresca added: ‘We don’t know how long he is going to be out. For sure it’s a problem for us. We need to wait. We don’t know yet. 

'I spoke with him yesterday and I told him that if we achieved what we achieved last year, it is also because of him and he was a main player for us.’