Carl Daniel Jenkinson (born 8 February 1992) is a professional footballer who plays for Birmingham City on loan from Arsenal as a defender. Jenkinson began his career with Charlton Athletic before joining Arsenal in 2011. He represented both the English and Finnish national teams at youth level before making his debut for the England national team in 2012.
Jenkinson joined Conference South side Welling United on loan in January 2010, before starting a three-month loan with Conference Premier side Eastbourne Borough in November 2010. However, he was recalled by Charlton after a month. He made his first appearance for Charlton Athletic in the Football League Trophy Southern Section semi-final clash with Brentford at Griffin Park in December 2010, playing the whole match in the right-back position.
Jenkinson signed for Arsenal in June 2011, for an undisclosed fee thought to be around £1 million.
On 16 August 2011, Jenkinson made his Arsenal competitive debut in the final qualifying round of the UEFA Champions League against Udinese, coming on as a second-half substitute, replacing the injured Johan Djourou early in the second half. Jenkinson made his Premier League debut against Liverpool on 20 August 2011, starting at right-back. He kept his place in the team, playing in the second leg against Udinese and then at Old Trafford against Manchester United in the Premier League, although he was sent off later in the game for a foul on Javier Hernández. He also assisted Robin van Persie to score Arsenal's second in the game in an 8–2 loss against Manchester United. Jenkinson continued a string of appearances for Arsenal in Bacary Sagna's absence with an impressive performance against West Bromwich. Jenkinson suffered a stress fracture in his lower back which kept him out for 3 months. He made his return for the reserve team against Norwich City, playing 45 minutes. He continued his return to football coming on as a substitute against Tottenham Hotspur in the North London Derby, a game which he watched from the stands the previous year.
Due to an injury to first choice right back, Bacary Sagna, Jenkinson started the first five matches of the 2012–13 season, and earned plaudits for his performance against Manchester City, among others.
On 19 December 2012, it was announced that Jenkinson, along with teammates Alex Oxlade-Chamberlain, Kieran Gibbs, Aaron Ramsey and Jack Wilshere, signed a new long term contract with Arsenal.