By Hannah Pinnock Chelsea have extended the contract of promising young defender Cerys Brown. The London club exercised the option ahead of the new season after the teenager penned her first professional deal 12 months ago. Brown joined Chelsea’s academy set-up in 2021 and, now 19, she is impressing for both club and country. She made her first team debut in an FA Cup game against Reading, but at youth level she has won accolades such as Under-18 Player of the Season. Brown spent the second half of 2023/24 on loan at Watford in a bid to continue her senior development in the second tier of the…