As we countdown to Russia 2018, we take a look at all 32 teams and suggest a reason to back them. With just four days to the big kick-off, it is the turn of Tunisia

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Tunisia's highly-rated attacker Wahbi Khazri will sit out a second successive World Cup warm-up match on Friday, raising concerns over his readiness for this month's tournament in Russia.
           
The Stade Rennes forward, on loan from English side Sunderland, is regarded as key to Tunisia's hopes of making an impact in Russia, where they face Belgium, England and Panama in Group G.
           
However, national team officials said that a thigh muscle strain means Khazri will sit out Friday's international against Turkey in Geneva after he also missed the 2-2 draw with Portugal in Braga on Tuesday.
           
The 27-year-old has been training apart from the rest of the squad at their base in Lausanne, Switzerland, officials added.
           
He has not played since the end of April, missing Rennes' last three games of the Ligue 1 season.
           
The North African nation play Spain in their final warm-up friendly next Saturday.
           
Tunisia have already been hit by injuries to creative winger Youssef Msakni and striker Taha Yassine Khenissi, who will both miss the World Cup which begins on June 14. 

Goalkeepers: Farouk Ben Mustapha (Al Shabab), Moez Hassan (Chateauroux), Aymen Mathlouthi (Al Batin)

Defenders: Rami Bedoui (Etoile Sahel), Yohan Benalouane (Leicester City), Syam Ben Youssef (Kasimpasa), Dylan Bronn (Gent), Oussama Haddadi (Dijon), Ali Maaloul (Al Ahly), Yassine Meriah (Sfaxien), Hamdi Nagguez (Zamalek)

Midfielders: Mohamed Amine Ben Amor (Al Ahly Jeddah), Ghaylene Chaalali (Esperance), Ahmed Khalil (Club Africain), Seifeddine Khaoui (Troyes), Wahbi Khazri (Stade Rennes), Ferjani Sassi (Al Nassr), Elyes Skhiri (Montpellier)

Forwards: Fakhreddine Ben Youssef (Al Ittifaq), Anice Badri (Esperance), Saber Khalifa (Club Africain), Naim Sliti (Dijon), Bassem Srarfi (Nice)

You can follow the FIFA World Cup from 14 June with RTÉ. Live blogs of every game on RTÉ.ie and the News Now App, with 56 games live on RTÉ television and all 64 games available on the RTÉ Player.