Wales international prop Aaron Jarvis has signed for Dragons on a two-year deal from French club Clermont Auvergne.
The 31-year-old former Ospreys forward has won 18 Test caps, with his last Wales appearance being against New Zealand in 2016.
He will be will be reunited with ex-Ospreys colleagues Richard Hibbard and Ryan Bevington, who will also be Dragons players next season.
"I've really enjoyed my time in France with Clermont," said Jarvis.
"I feel I am returning to Wales a better player and proud of what I've achieved during my time here.
"The time feels right to return for a fresh challenge and I'm excited about joining the Dragons next season given the squad Bernard is building and linking up again with Richard Hibbard and Ryan Bevington after our time together at the Ospreys."
April 28, 2018, 2:45pm
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Head coach Bernard Jackman said: "We're delighted to sign Aaron for next season. He has the pedigree, profile and talent we were looking for to boost our front row options, with a wealth of experience at regional, European and international level.
"I feel that his game and in particular his scrummaging is now even better than before having experienced the different forces and styles that the Top 14 exposes tightheads too.
"Aaron is a honest, hard working player and exactly the type of player we need on the pitch but also off it to act as a role model for the young talent that has emerged this season.
"With the likes of Elliot Dee, Richard Hibbard, Leon Brown, Ryan Bevington, Brok Harris and now Aaron Jarvis, our strength and power up front will give us a platform to compete against the best teams in the Pro14 and in Europe."