This isn't a Bundesliga match, it's a DFB-Pokal semifinal. St. Pauli plays in the 2. Bundesliga, and Union Berlin is a top-tier side. That distinction matters, especially in a cup tie under the lights at Millerntor.
Key matchup will be Union's midfield general, Rani Khedira, against St. Pauli's engine room, probably led by Jackson Irvine. Khedira's ability to break up play and launch counters is critical for an Union side that’s been a bit shaky on the road lately, drawing 2-2 with Stuttgart and losing 2-0 to Bayern in their last two away league matches. St. Pauli, meanwhile, has found some form, winning three of their last five in the second division, including a 1-0 win over Hansa Rostock. They're not a pushover at home, not with that crowd.
Union scrapes by. Union Berlin 2, St. Pauli 1.
Predictions are for entertainment purposes only. Not gambling advice.