POCOGNOLI joined Albion from Hannover 96 for an undisclosed fee on July 12, 2014.
The left-back has became the Baggies’ fourth summer signing. He penned a three-year deal, plus a year’s option in the club’s favour.
Pocognoli, who had 12 Belgium caps before moving to The Hawthorns, narrowly missed out on a place in his country’s Brazil-bound World Cup squad after injury saw him miss the final six weeks of the 2013/14 season.
The 6ft player has top-flight experience in Belgium, Holland and Germany following spells with Genk, AZ Alkmaar, Standard Liege and Hannover.
In 2008/09, Pocognoli played a prominent role as Alkmaar – then managed by Holland boss Louis van Gaal – won the Dutch Eredivisie title.
He began his career at Standard Liege before joining Genk in 2003.
He was capped by his country at every youth level from under-16s upwards prior to making his full international debut against Italy in May 2008.
After four successive top-five finishes in the Belgian Jupiler League, he crossed the border to join Dutch outfit Alkmaar.
During the 2008/09 season, he made 27 appearances as AZ were crowned Dutch champions for only the second time in their history.
Pocognoli returned to Standard Liege in 2010 and, in his first full season back at Stade Maurice Dufrasne, he helped them to a domestic cup triumph and second-place finish.
He joined German outfit Hannover in January 2013 and made 30 Bundesliga appearances before joining the Baggies.