After his release from WWE, Grenier became a French language commentator for Total Nonstop Action Wrestling (TNA) Impact!

[1] Grenier auditioned for series one and two of Tough Enough, the reality television program produced by World Wrestling Entertainment in 2001 and 2002, but was unable to attend the selection process due to visa problems.

[4] While he was in Florida training and taking part in a modeling shoot, Grenier met WWE producer Pat Patterson, with whom he became good friends.

[5] On April 28, Grenier returned to WWE, debuting on the Raw brand alongside fellow French Canadian René Duprée.

[7] Grenier and Duprée went on to win the World Tag Team Championship from Kane and Rob Van Dam at the 2003 Bad Blood event.

[8][9] After that the decision was made to add Rob Conway as a third member who began by posing as an American serviceman being abused by Grenier and Duprée until the Dudley Boyz came out to save him.

Once the Dudley Boyz had their backs turned to Conway, he attacked them with the American flag they had given him before tearing it off the pole and laying it on top of them.

[10] During their time together the trio feuded with several tag teams; including the Dudley Boyz, The Hurricane and Rosey, and Garrison Cade and Mark Jindrak.

[14][15][16] Their first title reign began when they defeated Chris Benoit and Edge on the May 31, 2004, episode of Raw in Grenier's home town of Montreal.

[19] Their final Tag Team Championship win occurred at a Raw house show in Winnipeg, Manitoba, Canada on January 16, 2005.

[16] La Résistance dropped the championship a few weeks later on the February 7, 2005, episode of Raw in Tokyo, Japan to William Regal and his new tag team partner Tajiri.

In the match, La Résistance managed to eliminate the current champions but were defeated by the last remaining team, Hurricane and Rosey.

This saw Conway defeat a jobber and Val Venis, while Grenier was defeated by both Val Venis and Chris Jericho before both men competed in a triple threat match (with Intercontinental Champion Shelton Benjamin for the title), Benjamin won the match after the La Résistance members began to argue and fight with each other.

[24] He was repackaged with a gimmick of a narcissistic male supermodel known simply as "Sylvain", though his name was later tweaked to "Sylvan", the same spelling that was used in the original La Resistance vignettes.

On July 7 he appeared in-ring to cut a promo attempting to "make peace" with the US fans by welcoming them to visit his home province.

Sylvan returned to OVW on November 15, making a surprise appearance as Sylvain Grenier, teaming with Rob Conway to reform their La Résistance.

On the December 22 episode of SmackDown!, he disguised himself as Santa Claus and attacked World Heavyweight Champion Batista with a steel pipe.

[38] On the February 20, 2007, episode of ECW, Grenier returned and reformed the original La Résistance with René Duprée, defeating a pair of local wrestlers.

[39] Due to Duprée getting suspended at the start of March, however, and being sent to rehab after violating the Health and Wellness policy, the team was quietly disbanded.

[40] On November 29, 2007, Grenier debuted as a French language commentator for Total Nonstop Action Wrestling's (TNA) Impact!

Grenier returned to the independent circuit in January 2008 at International Wrestling Syndicate's Praise The Violence where he lost to Kevin Steen in an IWS Heavyweight Championship number one contendership match.

[43] On April 17, 2009, he appeared for Ring of Honor, competing in a six-man tag match, in which he teamed with The American Wolves (Davey Richards and Eddie Edwards) in a loss to Bryan Danielson, Kevin Steen and El Generico.

In November 2011, Greiner toured several European countries as part of American Wrestling Rampage, where he predominantly teamed with former La Résistance partner René Duprée.

[citation needed] As an entrepreneur, Grenier has succeeded in the sports nutrition business as well as the real estate industry.