Sawyer started his career with Chelsea at the age of nine. In July 2007, he signed a professional contract with Chelsea. In his last season as a schoolboy, Sawyer overcame both a stress fracture in his back and cruciate ligament before being promoted to the youth and reserve teams. In the 2006–07 season, Sawyer sat on the Chelsea bench for the last league game of the season, although he did not play. Sawyer was intended to go on the pre-season tour of the United States, but was ruled out of the tour through injury. He then dislocated his shoulder in December 2007, ruling him out of the start of the club's Youth Cup run. Sawyer played seven games for the reserves in the 2007–08 season, plus 14 appearances in the youth teams. A red card in the semi-final of the Youth Cup ruled him out of both legs of the final.
On 18 August 2008, Sawyer went on loan to Southend United for three months to gain some first team experience. He made his debut as a substitute against Brighton & Hove Albion, on 22 August 2008. He made his first start for Southend United on 30 August 2008 against Walsall. He scored his first two goals against Leyton Orient in the 4–2 loss in the Football League Trophy on 3 September 2008. Ironically his only league goal for the club also came against Leyton Orient, in a 3–0 win on 26 September 2008. Before he returned to Chelsea Sawyer said that he wanted to return to Southend United.
Sawyer joined Coventry City on loan for a month on 26 January 2009. Sawyer found first team opportunities at Coventry City very limited and only made one start and one sub appearance under Chris Coleman before returning to Chelsea.
Another loan deal soon followed, this time at Wycombe Wanderers, from 19 March 2009 until the end of the 2008–09 season. He scored his first goal for the club on 25 April as part of a 1–1 draw with Port Vale and played a key part in the club's promotion push to League One.
Return to Southend United
Sawyer returned to Southend United on 14 July 2009 on loan until January 2010. However, after mutually agreeing with the club the termination of the loan, Sawyer returned to Chelsea on 26 October. Much speculation surrounded Sawyer's departure from the club and although Sawyer decided to stay quiet on the issue, Southend issued a statement claiming the player had breached the club's discipline policy. Due to the upheaval that was exposed to Sawyer at Southend United. On 12 November, it was announced that Sawyer's contract with Chelsea had been terminated by mutual consent. This was due to the assault and battery of his girlfriend at the time.
On 14 January 2010, Sawyer signed for Barnet on a short-term contract. He scored his first goal for the club in a 1–1 draw with Torquay United on 26 January 2010. Due to an administrative error by Barnet, Sawyer couldn't play for any club including Barnet for the remainder of the 2009–10 season.
On 12 November 2010, Sawyer signed on non-contract terms for Conference South club Woking. On 17 January 2011, Sawyer had reportedly left the club by mutual consent to return to Southend United. However, on the same day Southend boss Paul Sturrock denied a deal had been completed but talks with Sawyer where ongoing.
Southend United (third spell)
On 18 January 2011, Sawyer completed his return to Southend United on a deal until the end of the season with the option of a further one-year contract. Sawyer made his third debut for the Blues in a 1–1 draw against Bury on 21 January, coming on as a 69th-minute substitute replacing Kane Ferdinand. After making sporadic appearances in the first team, Sawyer was released from Southend United at the end of his contract along with eleven other players.
Sawyer was released by Sutton United, with his three-month loan from Sutton officially expired he was allowed to sign for Chelmsford City. In 19 appearances he went on to score two goals, including the winner against the league leaders Basingstoke. At the end of the season, Mark Hawkes announced he would be signing a new deal for the 2015–16 season where he went on to make 36 appearances and scoring four goals. He signed a new deal under Rod Stringer, but later went on to sign for Bishop's Stortford.
International career
Sawyer made his international debut for the England U-16s against Scotland in the Victory Shield in November 2004. He has played for the England U-18s and the England U-19s, scoring a goal for both teams. On 27 March 2007, he scored a volley in the England U-18 team's 4–1 victory over the Netherlands' U-18 team.
