Northern Ireland can take their qualifying campaign all the way after a thrilling victory over the Poles.
And the winner was down to a howler from Celtic keeper Artur Boruc.
Warren Feeney got the opener and Ireneusz Jelen levelled before Jonny Evans's first goal for his country. Boruc then totally missed Michal Zewlakow's back-pass, much to Belfast's delight.
Poland pulled one back through Mark Saganowski's header.
Northern Ireland are looking forward to Wednesday's Windsor Park clash with Slovenia.
Boss Nigel Worthington said: "Poland were rocked by our fantastic fans, who really got behind us. Now we must do it again on Wednesday."