Born in Holon, Israel, Sidi grew up in Tel Aviv.[2] In 2010, after completing his service in the Israeli Defence Forces, Sidi moved to Canada in order to begin his training to become a professional wrestler.[2]
After arriving in Canada in 2010, Sidi first went to both Calgary and Winnipeg before ultimately winding up at Squared Circle Wrestling where he was trained by Rob Fuego.[3]
On November 1, 2012 Tomer returned to Israel to wrestle for the first time and wrestled Lior Libman at Israeli Pro Wrestling Association's Wrestling In The Rain event.[4] Two days later Sidi made his All Wrestling Organization debut at a house show.[5] The following week he wrestled for AWO at their Face Off event.[6]
On March 23, 2014 Sidi while wrestling for Crossfire Wrestling won the CW Heavyweight Championship,[7] which he held for 259 days.[8]
On December 10, 2015, Sidi returned to Israel at the Ultimate Wrestling Israel event UWI Showdown, but was eliminated in the quarter-finals of the UWI Heavyweight Championship tournament.[9] Four days later, Sidi wrestled his first match for the Israeli Wrestling League at the IWL VIII event.[10] Three weeks later, Sidi again wrestled for Ultimate Wrestling Israel.[11]
On March 13, 2016 while wrestling for Victory Commonwealth Wrestling as Goliath Ayala, Sidi won his second title, the VCW Openweight Title, during their 4th Annual Iron Man Rumble.[12] During Sidi's reign VCW was renamed to Hogtown Pro Wrestling and the belt renamed the HPW Openweight Title.[13] In October 2016, Sidi lost in the final match of the tournament to crown the new HPW Heavyweight Champion.[14] Sidi ultimately lost the title on January 29, 2017.[15]
On August 7, 2017 Sidi made his WWE debut, filling in for Curtis Axel,[16] under the name Jean-Pierre Goulet,[17] and billed from Quebec City.[18] in a match which he lost to Jason Jordan.[19] During the match held in Canada, local wrestling fans recognizing Sidi began chanting "Tomer, Tomer, Tomer".[20] The reaction from the fans caught the attention of the WWE, and following the match, Sidi was offered a tryout by the WWE.[3] The WWE had previously expressed interest in him wrestling for their NXT brand, however they ran into visa issues.[21]