Chelsea interested in signing 19-year-old French powerful defender

Chelsea appear set to step up their interest in Marseille full-back Boubacar Kamara, as club scouts watched the player in action over the weekend.

Blues officials were believed to be at Stade Gaston Gerard on Friday night to see Marseille victory 2-1.

The defender started the match alongside Duje Caleta-Car and was booked in the final moments of the win.

The report adds that the Blues are keen to closely monitor the player’s development ahead of the upcoming summer transfer window.

Other scouts from English sides were also at the game, but the report does not clarify if they were also present to see the Chelsea transfer target.

London side are likely to be in the market for a centre-back in the summer as club captain Gary Cahill is set to leave Stamford Bridge at the end of his current deal, which expires at the end of the season.

There are also concerns over the futures of both Andreas Christensen and David Luiz.

The Denmark international was linked with a move to Barcelona, but Chelsea rejected two offers from the Catalan giants while one offer was submitted from Italian champions Juventus which was also turned down.

The Dane is 22 years old and is contracted to Stamford Bridge club until 2022 and the Blues are not willing to let the defender on cheap or send him on loan.

Meanwhile, David Luiz is hesitating to sign a one-year contract extension with Chelsea as the club is not willing to offer a multi-year deal to the Brazil international.