[2][3] Griffiths played football as a centre back for Porthmadog FC, but had to curtail his career due to a knee injury.

[3] He represented the UK in a 'Battle of the Nations' tag team match between the UK and Austria, teaming with Drew McDonald and Sheamus O'Shaunessy in a losing effort to Chris Raaber, Michael Kovac, and Robert Ray Kreuzer at the European Wrestling Association's Night of Gladiators show in June 2007.

[13] After signing with World Wrestling Entertainment (WWE), Griffiths had his final show in Wales in October 2008 in Porthmadog, when he won a singles match and battle royal.

[15] When he received his work visa, he debuted in their developmental territory, Florida Championship Wrestling (FCW) in January 2010.

[2][11][16] Over the next few months, Ryan successfully defended the championship against wrestlers including Bo Rotundo, Richie Steamboat, and Eli Cottonwood.

[18][19] On 3 February 2011, Ryan lost the Florida Heavyweight Championship to Bo Rotundo, ending a six-and-a-half month reign.

[20] Griffiths, as Mason Ryan, made his WWE television debut on 17 January 2011 episode of Raw by interfering in a match between CM Punk and John Cena.

[25] He was absent from television for nearly a month, making his return on 11 April on Raw with the other New Nexus members, attacking Orton and preventing him from earning a WWE Championship match.

[27] At the Over the Limit pay-per-view on 22 May, Ryan and Punk challenged Big Show and Kane for the WWE Tag Team Championship, but were unsuccessful.

[34][35] Ryan was part of Team Orton at the Survivor Series pay-per-view in November, where he was eliminated by Cody Rhodes.

[43] On 5 September, at Full Impact Pro's Fallout, Ryan along with Michael Tarver and Shaun Ricker participated in a trios tournament, but were defeated by the Full Impact Puerto Ricans (Lince Dorado, Jay Cruz, and Jay Rios).

[46] On 16 February 2015, Ryan took part in a dark match before the TNA One Night Only's Gut check event defeating Shaun Ricker.

[48] On 20 February 2015, Griffiths, working under the ring name Mason Williams, made his debut for the Japanese Inoki Genome Federation (IGF) promotion, losing to Shogun Okamoto.

[49] In January 2016, Ryan announced on his Twitter account that he is now working at Cirque du Soleil, as the chief archer of Kà.

[6] When he was working on a television show in Wales about being a wrestler, he was told that producers were looking for new gladiators, and he applied with the encouragement of his trainer, Orig Williams.