In the second semi-final fixture of the DFB-Pokal, RB Leipzig welcome Union Berlin at the Red Bull Arena on Wednesday.The winner of this duel will take on the winner of the first semi-final that will be contested between Hamburg and Freiburg on Tuesday.The hosts overcame Hannover in their quarter-final fixture last month, with Christopher Nkunku's brace helping them to a 4-0 win. They are yet to concede a goal in the four games in the competition so far and will be looking to maintain their 100% clean sheet record here.The visiting side beat FC St. Pauli 2-1 in the previous round of fixtures. Leipzig were the finalists last season and will be hoping to go all the way this time, while Union Berlin have not made it to the final since 2001.The DFB-Pokal@DFBPokal_ENThe final step on the road to #Berlin2022 Who do you think will make the #DFBPokal final? 12:21 PM · Mar 7, 20226722The final step on the road to #Berlin2022 🏆Who do you think will make the #DFBPokal final? 👀 https://t.co/kfOBkNFGOtRB Leipzig vs Union Berlin Head-to-HeadThere have been nine meetings between the two sides across all competitions and this will be their first meeting in the cup competition. Die Roten Bullen enjoy a 5-3 lead in wins while just one game has ended in a draw.The last two meetings in this fixture have ended in 2-1 wins for the capital club.RB Leipzig form guide (all competitions): W-W-W-D-WUnion Berlin form guide (Bundesliga): W-W-W-L-DRB Leipzig vs Union Berlin Team NewsRB LeipzigKevin Kampl missed the game against Bayer Leverkusen with fitness issues and faces a late fitness test ahead of the game. Yussuf Poulsen's hand injury was not as serious as first thought and he is in contention to start here. Amadou Haidara remains out with a ligament injury.RB Leipzig English@RBLeipzig_ENA busy week ahead with two games against @fcunion_en #WeAreLeipzig11:21 AM · Apr 18, 2022641A busy week ahead with two games against @fcunion_en 👊🔴⚪ #WeAreLeipzig https://t.co/gVdzh9atlyInjured: Amadou HaidaraDoubtful: Kevin KamplSuspended: NoneUnion Berlin Anthony Ujah is struggling with fitness issues while goalkeeper Andreas Luthe remains out with muscular problems.Injured: NoneDoubtful: Anthony Ujah, Andreas LutheSuspended: NoneRB Leipzig vs Union Berlin Predicted XIRB Leipzig Predicted XI (3-4-1-2): Péter Gulácsi (GK); Mohamed Simakan, Willi Orban, Josko Gvardiol; Angeliño, Konrad Laimer, Dominik Szoboszlai, Marcel Halstenberg; Dani Olmo, Christopher Nkunku; Andre SilvaUnion Berlin Predicted XI (3-5-2): Frederik Rønnow (GK); Paul Jäckel, Robin Knoche, Timo Baumgartl; Christopher Trimmel, Rani Khedira, Genki Haraguchi, Grischa Promel, Niko Giesselmann; Sheraldo Becker, Taiwo Awoniyi2 for 1 New Player Bonus at BarstoolRB Leipzig vs Union Berlin PredictionThe hosts have been in great form recently and are on a 14-game undefeated streak across all competitions. They have kept a clean sheet in their last three games across all competitions and have not conceded a goal in any of their four games in the competition. The odds of a clean sheet for Leipzig look good.Die Eisernen have made it three wins in a row in the league but might struggle against their southern rivals. We expect Leipzig to triumph.Prediction: RB Leipzig 2-1 Union Berlin