Crystal Palace are reportedly preparing a £20m move for Arsenal defender Calum Chambers.

The 22-year-old joined Arsenal from Southampton in the summer of 2014, but the centre-back has struggled to settle at the Emirates Stadium, and was sent on loan to Middlesbrough last summer.

Chambers made 24 Premier League appearances for Boro during the 2016-17 campaign, and it is understood that the England Under-21 international will leave the Gunners this summer in search of regular action.

According to Sky Sports News, new Palace boss Frank de Boer is interested in signing Chambers on a permanent deal this summer, with the Dutchman being handed funds to improve the squad ahead of the new campaign.

Chambers was left out of Arsenal's pre-season squad due to his involvement with England at the European Under-21 Championships in Poland earlier this summer.