The Super Eagles team will be lodged at the Radisson Blu Hotel in Wroclaw.
They have been placed in group D alongside Argentina, Croatia and first-timers Iceland in the 2018 Fifa World Cup in Russia.
Nigeria will take on another World Cup bound team, Serbia at the Hive in London four days later.
Some of the early arrivals at the camp include William Troost-Ekong, Alex Iwobi, Ola Aina, Tyronne Ebuehi, Brian Idowu and Leon Balogun, Francis Uzoho, Elderson Echiejile, Stephen Eze, Joel Obi, Shehu Abdullahi, John Ogu, Moses Simon and Kenneth Omeruo.
Below is a list of Super Eagles player invited for the game against Poland.
LIST OF INVITED PLAYERS
Goalkeepers: Francis Uzoho (Deportivo La Coruna, Spain); Ikechukwu Ezenwa (Enyimba FC); Daniel Akpeyi (Chippa United, South Africa)
Defenders: Abdullahi Shehu (Bursaspor FC, Turkey); Tyronne Ebuehi (Ado Den Haag, The Netherlands); Olaoluwa Aina (Hull City, England); Elderson Echiejile (Cercle Brugge KSV, Belgium); Brian Idowu (Amkar Perm, Russia); Chidozie Awaziem (Nantes FC, France); William Ekong (Bursaspor FC, Turkey); Leon Balogun (FSV Mainz 05, Germany); Kenneth Omeruo (Kasimpasa FC, Turkey); Stephen Eze (Lokomotiv Plovdiv, Bulgaria)
Midfielders: Mikel John Obi (Tianjin Teda, China); Ogenyi Onazi (Trabzonspor FC, Turkey); Wilfred Ndidi (Leicester City, England); Oghenekaro Etebo (Las Palmas, Spain); John Ogu (Hapoel Be’er Sheva, Israel); Uche Agbo (Standard Liege, Belgium); Joel Obi (Torino FC, Italy)
Forwards: Ahmed Musa (CSKA Moscow, Russia); Kelechi Iheanacho (Leicester City, England); Moses Simon (KAA Gent, Belgium); Victor Moses (Chelsea FC, England); Odion Ighalo (Changchun Yatai, China); Alex Iwobi (Arsenal FC, England); Junior Ajayi (Al Ahly, Egypt); Gabriel Okechukwu (Akwa United)