On January 23, 2004, in Southbridge, Massachusetts, they defeated Cueball and Nick McKenna to win the Eastern Wrestling Alliance Tag Team Championship.

In April 2005, William Regal and Tajiri successfully defended the World Tag Team Championship against the debuting Romeo (Roselli) and Antonio (Thomas), billed as "The Heart Throbs".

He defeated El Bronco for the WWC Puerto Rico Heavyweight Championship, and re-lost the title to him in a Loser Leaves Town rematch, before returning to the US.

On April 6, Roselli made his UK debut when he defended the NWE World Heavyweight Championship against Sterling James Keenan at One Pro Wrestling.

On April 22, Roselli announced his surprise partner for the evening as Joey Mercury on a NEW event in Bristol, Connecticut and the duo, managed by TNA Knockout Velvet Sky went on to defeat Vik Dalishus and Hale Collins of The NOW.

On May 4, 2007, Roselli made a rare US NWE World Heavyweight Championship title defense at Top Rope Promotions at the 2007 Killer Kowalski Cup where he defeated Mike Bennett.

On November 14, 2013, Roselli wrestled for the ROH World Television Championship in an independent show, Robbie Ellis Tribute: A tournament of Super Juniors, against Matt Taven, but was defeated.

On August 2, 2014 Roselli defeated WWE Hall of Famer Booker T Huffman Reality of Wrestling student Sergei Volkov in front of 3000 fans in Fishkill, New York at Dutchess Stadium.

At Total Nonstop Action Wrestling's Destination X PPV, on March 11, 2007, Roselli and Antonio Thomas, (billed as The Heartbreakers), were revealed as the mystery tag team selected by Christy Hemme to face the Voodoo Kin Mafia.

In 2012, he appeared in four different episodes of the Food Network program Restaurant Stakeout in which host Willie Degel sent him in as a plant to test the wait staff.

In 2013, he appeared on the SyFy network original movie BattleDogs, which stars Craig Sheffer, Dennis Haysbert, Kate Vernon, and Ernie Hudson.

In the summer of 2013, Roselli was cast as the personal trainer for the National Geographic Channel program Brain Games and appeared alongside host Jason Silva in seasons 3 and 4.

Roselli plays one of the principal characters, Tony, in the comedy-horror feature film Jersey Shore Massacre, which is executive produced by Jenni Jwoww Farley.