Michael O’Neill’s men are an incredibly tight defensive unit and you have to go all the way back to March of last year for their last defeat, a 1-0 reverse against Scotland in a friendly.
They’ve also managed clean sheets in four of their last five games but during those matches they haven’t come up against anyone with the same kind of quality as Poland’s Robert Lewandowski.
The Bayern Munich marksman notched an incredible 48 goals in 55 appearances in all competitions last season and will be the main threat for Poland on Sunday.
Northern Ireland, however, have a danger man of their own in Kyle Lafferty.
Unlike Lewandowski, the 28-year-old endured a difficult domestic campaign at Norwich before being loaned out to Birmingham in the final months of the season, but he starred for his country during the Euro 2016 qualifiers with seven goals.
Chances will be hard to come by for O’Neill’s side but if one falls Lafferty’s way he can make the most of it and the 33/10 on offer for him to score any time is worth some consideration.