Pritchard began his career in the academy at West Ham United, before transferring to the youth setup at Premier League side Tottenham Hotspur in June 2009.

[4] He received his maiden call into the first team squad for a UEFA Europa League group stage game versus PAOK on 15 September 2011.

[9] Following Pritchard's NextGen Series performances and with only half a year remaining on his contract, there was speculation that Spanish sides Real Madrid and Barcelona would attempt to sign him.

[deprecated source] After spending the majority of the 2013–14 season out on loan, Pritchard received his first call into the first team squad in two and a half years when he was named as a substitute for a Premier League match versus his former side West Ham United on 3 May 2014.

[14] Pritchard was called up again for the final game of the season against Aston Villa and made his debut for the club when he replaced Gylfi Sigurðsson after 83 minutes of the 3–0 win.

[22] On 9 July 2013, Pritchard joined League One side Swindon Town on a season long loan deal,[23] linking up with fellow Tottenham loanees Massimo Luongo, Grant Hall, Ryan Mason and former teammates Nathan Byrne and Jack Barthram at the County Ground.

[24] Wearing the number 11 shirt, Pritchard scored his first goal for the club on 27 August, in a 2–0 win against Queens Park Rangers in the League Cup second round.

[25] Pritchard's form led to interest from Championship sides Huddersfield Town, Blackburn Rovers and League One leaders Wolverhampton Wanderers in January 2013.

[26] Pritchard was sent off for the first time in his career in a league match versus Bristol City on 15 March, receiving a straight red card for a shove on Wade Elliott.

[27] Earlier in the season, manager Mark Cooper stated that Pritchard would need to "curb his temper", after he picked up five bookings in seven league matches.

[16] After transfer interest from Wolverhampton Wanderers and Wigan Athletic,[33] Pritchard signed for Championship side Brentford on a season-long loan on 17 July 2014.

[34] Manager Mark Warburton (who helped create the now-defunct NextGen Series) said Pritchard "is very good tactically and technically with excellent dead ball delivery.

[35] He made his competitive debut for the club on the opening day of the 2014–15 season, lasting 79 minutes of a 1–1 draw with Charlton Athletic before being replaced by Tommy Smith.

[39] Another good performance and a goal in a 3–1 victory over AFC Bournemouth in late February saw him named in the Football League Team of the Week for the second time of the season.

Pritchard received his first call into the U21 squad on 28 August 2014 and made his debut in a 1–0 2015 European U21 Championship qualifying victory over Lithuania on 5 September, coming on for Nathan Redmond after 79 minutes.