Robert Lewandowski is predicting Sunday's Euro 2016 qualifier against Ireland to be the most difficult game of the campaign for Group D leaders Poland
Although Poland caused the biggest shock of the campaign so far in October by beating World Champions Germany 2-0, their captain believes the trip to Dublin could be trickier.
"This may be the toughest match of the qualifiers," said Lewandowski, whose side hold a three-point lead over Ireland, Germany and Scotland. "We are aware of the opposition but, playing away from home, we will need to put our heart in this game."
The Bayern Munich striker, who has scored 23 goals in 66 internationals, compared the style of Ireland to that of Celtic cousins Scotland. Gordon Strachan's side held Poland to a 2-2 draw in Warsaw, the only points the group leaders have dropped so far.
"Both teams don't prefer the subtle game," said the 26-year-old. "The Irish are famous for their long passes and we must prevent this. They are defensively strong too.
"We must not forget that we want to play football. If you speed up the game and we exchange quick passes, it causes problems for our rivals. I hope that we will be so well prepared physically, mentally and won't have any problems creating chances."