Stade Francais hooker Dimitri Szarzewski will be playing for cross-town rivals Racing-Metro as of next season.
It had been widely known for several months that the France international, a part of the team that finished second to New Zealand at last year's World Cup, would sign for Racing.
However, Szarzewski deliberately waited until after Racing's home match with Stade on Saturday at Stade de France, won 19-13 by his future club, before making his decision public.
"After seven years at Stade Francais I've made the difficult decision to join Racing Metro 92 ... to have a new experience and undertake new challenges," Szarzewski said.
"It's a difficult decision, but one I've reflected on for a long time."
The 29-year-old, who has 61 caps for France, signed for Stade in 2005 after arriving from Beziers and helped them win the Top 14 title in 2007.
Stade this season failed to make the top six for the end of season play-offs.
AFP
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
$29.99
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.