Iran starting XI: Haghighi; Montazeri, Hosseini, Sadeghi, Pouladi; Heydari, Nekounam, Teymourian, Hajsafi; Dejagah; Ghoochannejhad
Nigeria starting XI: Enyeama; Ambrose, Omeruo, Oboabona, Oshaniwa; Mikel, Onazi, Azeez; Musa, Emenike, Moses
After watching Argentina see off Bosnia 2-1 last night, both Iran and Nigeria will be hoping to grab three points to go second in Group F as they kick off their World Cup campaigns.
Iran are expected to struggle massively, but do have some familiar faces in their team. Fulham's Ashkan Dejagah is the most notable of those, whilst they can also call upon Charlton Athletic striker Reza Ghoochannejhad and former Bolton Wanderers midfielder Andranik Teymourian.
Carlos Quieroz's side usually line up in a 4-4-1-1 system, with Dejagah operating in a free role behind Ghoochannejhad - and they're usually fairly tough to beat.
Looking to break their resistance tonight is Nigeria, who of course won the African Cup of Nations back in 2013. Manager Stephen Keshi has steadied the ship after years of underachieving, and this time they come into the tournament with high hopes of making it out of the group stage.
They will no doubt rely on the front three of CSKA Moscow's Ahmed Musa, Fenerbahce striker and reported Tottenham target Emmanuel Emenike and Chelsea winger Victor Moses. The trio have bags of pace, power and trickery, which Iran may struggle to deal with.