​Chelsea are eyeing up a £30m summer swoop for Newcastle United defender Jamaal Lascelles, according to reports. 

The Blues' defensive frailties have been a significant factor in the club's fall from Premier League champions to likely Europa League participants next season - with that being shown up once more during the club's 3-1 home defeat to Spurs on Sunday.

And, according to ​The Mirror, the Stamford Bridge talent spotters have noted the Magpies captain as a potential difference maker ahead of what could be their second campaign outside of Europe's elite competition in three years. 

The ​Chelsea scouts have highlighted Lascelles due to his sharing of traits with club legend John Terry; specifically, his leadership qualities and no-frills defending, and it is thought that they would be willing to part with up to £30m for the Englishman.

The 24-year-old joined the St James' Park outfit in 2014 from ​Nottingham Forest before returning to the City Ground on loan in the same season, alongside goalkeeper Karl Darlow. 

In 2016, boss Rafa Benitez opted to hand the former England Under-21 international, who missed out on Gareth Southgate's friendlies squad last month, the captain's armband; something he not failed to take advantage of. 

Last month, reports claimed West Ham United were also in the running for the centre-back, with the Hammers willing outlay around £15m in order to land the ​Newcastle man. 

However, considering Lascelles' impressive campaign so far this term and despite the Toon still fighting for their ​Premier League lives, Chelsea's £30m evaluation seems more respectable. 

Although the defender is happy with life on Tyneside, a proposed move to Stamford Bridge would be difficult for the expected future England international to turn down.