|Date of birth:||
February 8, 1992
Jenkinson began his career with Charlton Athletic before joining Arsenal in 2011. He spent the 2014–15 and 2015–16 seasons on loan at West Ham United, but his second spell was cut short by a mid-season cruciate ligament injury. He spent the 2017–18 season on loan to Championship club Birmingham City. He represented both England and Finland at youth level before making his debut for the senior England team in 2012.