Shumaira Mheuka has renewed his contract with Chelsea until 2031, and will spend the 2026/27 season on loan to Scottish champions Celtic.The 18-year-old striker joined Chelsea at the age of 13 and has so far made nine appearances for the Blues' first team. He made his senior football debut in December 2024, in Chelsea's victory over Astana in the Conference League.Mheuka comes after an exceptional season with the Chelsea U21 team, being declared…