Career
Chelsea
Blackman joined Chelsea at U13 level and progressed through the club"s youth system. He made his first appearance in a senior match day squad on 29 October 2011, sitting on the bench for a Premier League match against Arsenal which Chelsea lost 3–5 at home. Blackman signed a new five-year contract with the club in June 2014.
On 31 August 2014, Blackman joined Championship club Middlesbrough on loan until January 2015.
He made his full debut on 23 September 2014 against Liverpool in the third round of the League Cup as Boro drew 2–2 after 120 minutes but lost 13–14 in the resulting penalty shoot-out. His save from Raheem Sterling"s shot forced the shootout to sudden death, in which Blackman scored against opposition goalkeeper Simon Mignolet from the spot.
On 6 January 2015, following Mark Schwarzer"s departure to Leicester City, Blackman was recalled from his loan spell to work as the third goalkeeper with the first-team squad behind Thibaut Courtois and Petr Čech. On 18 March 2016, Blackman joined Swedish side Östersunds FK on loan until 31 May 2016, to gain first-team experience.
Blackman has represented England at U16, U17 and U19 level
In August 2014 he received his first call up for England U21 team
