Both games will start at 8:45 p.m., but the venues have yet to be confirmed, the Polish Football Association (PZPN) said.
Poland will play four friendlies ahead of this year’s World Cup in Russia.
Manager Adam Nawałka’s men will face off against Senegal, Colombia and Japan in the group stage of the Russian tournament, following a draw in Moscow in early December.
Meanwhile, the Polish team has been drawn to play Italy and Portugal in the group stage of the UEFA Nations League, a new competitive football format that would ultimately replace most international friendlies in Europe.
Poland’s 2018 fixtures
March 23: Nigeria (friendly, Wrocław)
March 27: South Korea (friendly, Chorzów)
June 8: Chile (friendly, Poznań)
June 12: Lithuania (friendly, Warsaw)
June 19: Senegal (World Cup, Moscow)
June 24: Colombia (World Cup, Kazan)
June 28: Japan (World Cup, Volgograd)
September 7: Italy (Nations League, away)
September 11: Ireland (friendly, venue to be confirmed)
October 11: Portugal (Nations League, home)
October 14: Italy (Nations League, home)
November 15: Czech Republic (friendly, venue to be confirmed)
November 20: Portugal (Nations League, away)
Source: PAP, laczynaspilka.pl, gol24.pl