Poland suffered a 2-1 defeat to Senegal in their Group H encounter in Moscow.

"The result was unexpected... We only have ourselves to blame for the two goals [that we conceded]. I don't even know what to say. The atmosphere at the World Cup is great, many Polish fans came... It's a pity we didn't manage to thank them [for their support] and make them happy," Rybus told journalists.

Poland are to face Colombia, who suffered a 2-1 defeat at the hands of Japan, in their next World Cup encounter on Sunday before taking on Japan on June 28.

"We played very badly [against Senegal], we can play better. We have two matches to prove it. Our next match with Colombia will be a matter of life and death for both teams after our losses in the first round," Rybus added.