Northampton Saints Cannon joined
Northampton Saints academy for the 2007–08 season. He made his debut for the first team in the
2007–08 National Division One on 4 March 2008. He was still in the academy but an injury crisis meant that he started in the midweek game against
Launceston, which Northampton won 72–7. Cannon was named on the bench against
Pertemps Bees four days later, but did not come on. He made his second appearance for the side as a replacement against
Exeter Chiefs on 22 March 2016 and started against
Nottingham a week later on 29 March. Cannon made a total of three appearances for the Saints in his debut season as they were promoted to the
Premiership. In the 2007–08 season, Cannon's second year in the academy, he didn't feature for Northampton's first team after the club's return to the Premiership. He was an unused replacement in a
2008–09 EDF Energy Cup game against
Bristol. In October 2007, Cannon was sent out on loan to get game time.
Loan to Bedford Blues Cannon was loaned to
Bedford Blues in the
National League 1 for the 2008–09 season. Cannon featured in two more games in the
2009–10 Premiership, coming on as a late replacement against
Leeds Carnegie and starting against
Bath. Saints finished second in the league table, but were beaten in the semi-final by
Saracens. He also played three times in the
2009–10 LV Cup, which Saints ultimately won, and scored his first try in a Cup game against
Ospreys. Cannon played in a total of six games for the first team over the course of the season. He left the club at the end of the season having made a total of nine first team appearances.
Wasps It was announced in April 2010 that Cannon had signed a two-year deal with
Wasps. He joined the side ahead of the 2010–11 season. Cannon made his Wasps debut in a
2010–11 Premiership against
Newcastle Falcons on 10 September 2010. He made his first ever appearance in the
Heineken Cup as a replacement against
Toulouse on 10 October 2010. Cannon made a total of 15 appearances in the Premiership in his first season with the side and played in four of Wasps' six games in the
2010–11 Heineken Cup. He also started four games in the
2010–11 LV Cup. Cannon didn't play in the
2010–11 Challenge Cup for the side, being an unused replacement in the team's only game in the competition, a 32–22 defeat to
Harlequins in the quarter-finals. All together, he made 23 appearances in his debut season, all but five of these coming as starts. Cannon didn't play as regularly for Wasps in his second season, missing a large part of the season through injury. His first appearance of the year came on 24 February 2012, when he played 80 minutes in a
2011–12 Premiership match against
Sale Sharks in a 46–34 defeat. He played in a further four Premiership games, as Wasps finished in 11th place avoiding relegation by just one point. Cannon also made a single appearance in the
2011–12 Challenge Cup, starting in the quarter-final against
Biarritz which Wasps lost 26–23. Despite his lack of game time over the course of the season, Cannon signed a contract extension with Wasps in March 2012. In addition to the league and Challenge Cup, he also played in four games in the
2012–13 LV Cup. Cannon played a total of 22 games in his third season with the team, and on the back of these performances was awarded another contract extension. At the end of the season, Wasps finished 7th in the Premiership, which put them into a
play-off to qualify for the following season's
Champions Cup. Cannon did not take part in the two-leg play-off against
Stade Français, which Wasps won. In the following season, Cannon continued to have a limited role in the first team, starting five of the team's
2014–15 Premiership games and coming on as a replacement in a further three. He started all four of the team's games in the
2014–15 LV Cup, and featured from the replacements bench in a
2014–15 Champions Cup game against
Castres. Despite his lack of game time, Cannon signed another contract extension with Wasps for the 2015–16 season. Cannon made his first appearance of the 2015–16 season in a
Premiership game against Harlequins on 16 October 2015. In the middle of the season however, Cannon went on loan to
London Scottish in the
Championship. He made a single appearance for the side during his loan, starting against
Rotherham Titans on 5 December 2015. Cannon returned to Wasps in the new year and featured from the bench against his former club
Northampton Saints on 29 January 2016. Following this, he played in eight more Premiership fixtures, making a total of 10 appearances for Wasps for the season. He made 16 appearances in his first season, and signed a two-year extension to his deal in February 2017. In his second season, Cannon was a regular starter for the side. He appeared 21 times in all competitions, starting all but three of his 17 games in the league.
Ealing Trailfinders Following his departure from Connacht, Cannon signed for
English Championship side
Ealing Trailfinders. ==International career==