Thibaut Courtois and his father Thierry have launched legal action against former Belgium manager Marc Wilmots, who claimed the Chelsea goalkeeper had leaked team information during the 2016 European Championships.
Wilmots had said in an interview with beIN Sports that he was informed Thierry sold Belgium's team news to journalists during Euro 2016.
Wilmots, 49, was sacked following his Belgium's defeat by Wales in the quarter-finals of the tournament, a game in which Courtois was goalkeeper.
"Wilmots - not for the first time - reiterates publicly and intentionally accusations against my honour and reputation as well as my father," Courtois said on social media.
"We decided together to file a complaint accompanied by criminal indemnification proceedings for libel and defamation."
Courtois and Wilmots also had a public falling out with the goalkeeper criticising Belgium's tactics during the Euro 2016.
Courtois, 25, is Chelsea's first-choice goalkeeper and has won two Premier League titles.
Other ways to buy used products in the UAE
UAE insurance firm Al Wathba National Insurance Company (AWNIC) last year launched an e-commerce website with a facility enabling users to buy car wrecks.
Bidders and potential buyers register on the online salvage car auction portal to view vehicles, review condition reports, or arrange physical surveys, and then start bidding for motors they plan to restore or harvest for parts.
Physical salvage car auctions are a common method for insurers around the world to move on heavily damaged vehicles, but AWNIC is one of the few UAE insurers to offer such services online.
For cars and less sizeable items such as bicycles and furniture, Dubizzle is arguably the best-known marketplace for pre-loved.
Founded in 2005, in recent years it has been joined by a plethora of Facebook community pages for shifting used goods, including Abu Dhabi Marketplace, Flea Market UAE and Arabian Ranches Souq Market while sites such as The Luxury Closet and Riot deal largely in second-hand fashion.
At the high-end of the pre-used spectrum, resellers such as Timepiece360.ae, WatchBox Middle East and Watches Market Dubai deal in authenticated second-hand luxury timepieces from brands such as Rolex, Hublot and Tag Heuer, with a warranty.
The permutations for UAE going to the 2018 World Cup finals
To qualify automatically
UAE must beat Iraq.
Australia must lose in Japan and at home to Thailand, with their losing margins and the UAE's winning margin over Iraq being enough to overturn a goal difference gap of eight.
Saudi Arabia must lose to Japan, with their losing margin and the UAE's winning margin over Iraq being enough to overturn a goal difference gap of eight.
To finish third and go into a play-off with the other third-placed AFC side for a chance to reach the inter-confederation play-off match
UAE must beat Iraq.
Saudi Arabia must lose to Japan, with their losing margin and the UAE's winning margin over Iraq being enough to overturn a goal difference gap of eight.