Borussia Dortmund are set to play Union Berlin at the Westfalenstadion on Sunday in the Bundesliga.Borussia Dortmund come into this game on the back of a 2-1 win over Sergen Yalcin's Besiktas in the group stage of the UEFA Champions League. Goals from young midfielder Jude Bellingham and superstar striker Erling Braut Haaland sealed the deal for Marco Rose's Borussia Dortmund. Spanish centre-back Francisco Montero scored the consolation goal for Besiktas.Union Berlin, on the other hand, lost 3-1 to Jindrich Trpisovsky's Slavia Prague in the group stage of the UEFA Europa Conference League. Goals from Danish right-back Alexander Bah, attacker Jan Kuchta and Slovakian forward Ivan Schranz ensured victory for Slavia Prague. Forward Kevin Behrens scored the consolation goal for Union Berlin, who had centre-back Paul Jaeckel sent off in the first-half.Borussia Dortmund vs Union Berlin Head-to-HeadIn seven head-to-head encounters between the two sides, Borussia Dortmund hold the clear advantage. They have won five games and lost two.1. FC Union Berlin 🇪🇺🛫@fcunion𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗡𝗶𝗴𝗵𝘁𝘀 🌟 #UECL #fcunion | #unioninternational11:51 AM · Sep 16, 20211617𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗡𝗶𝗴𝗵𝘁𝘀 🌟 #UECL #fcunion | #unioninternational https://t.co/uelImSWA42The two clubs last faced each other earlier this year in the Bundesliga, with Borussia Dortmund beating Union Berlin 2-0. Goals from experienced attacker Marco Reus and Portugal international Raphael Guerreiro secured the win for their club.Borussia Dortmund form guide in the Bundesliga: W-W-L-WUnion Berlin form guide in the Bundesliga: D-W-D-DBorussia Dortmund vs Union Berlin Team NewsBorussia DortmundBorussia Dortmund have a few issues. Manager Marco Rose will be unable to call upon the services of midfielder Emre Can, Spanish righ-back Mateu Morey, forward Julian Brandt and French centre-back Dan-Axel Zagadou.There are doubts over the availability of United States of America international Giovanni Reyna, Belgian winger Thorgan Hazard, left-backs Nico Schulz and Marcel Schmelzer and Belgian right-back Thomas Meunier.Injured: Julian Brandt, Dan-Axel Zagadou, Mateu Morey, Emre CanDoubtful: Thorgan Hazard, Giovanni Reyna, Thomas Meunier, Nico SchulzSuspended: NoneUnion BerlinMeanwhile, Union Berlin could be without midfielders Kevin Mohwald and Grischa Promel. Other than that there are no known issues and manager Urs Fischer is expected to have a fully fit squad at his disposal.Injured: NoneDoubtful: Grischa Promel, Kevin MohwaldSuspended: NoneBorussia Dortmund vs Union Berlin Predicted XIBorussia Dortmund Predicted XI (4-2-3-1): Gregor Kobel, Felix Passlack, Manuel Akanji, Mats Hummels, Raphael Guerreiro, Mahmoud Dahoud, Jude Bellingham, Marius Wolf, Marco Reus, Donyell Malen, Erling Braut HaalandB/R Football@brfootball17 UCL games, 21 UCL goals. Erling Haaland in the Champions League:11:04 AM · Sep 15, 202131806309117 UCL games, 21 UCL goals. Erling Haaland in the Champions League: https://t.co/ddqFSXhNYeUnion Berlin Predicted XI (3-5-2): Andreas Luthe, Marvin Friedrich, Robin Knoche, Timo Baumgartl, Christopher Trimmel, Levin Oztunali, Rani Khedira, Genki Haraguchi, Niko Giesselmann, Max Kruse, Taiwo AwoniyiBorussia Dortmund vs Union Berlin PredictionBorussia Dortmund have started their new era under the management of Marco Rose well. Much is expected from new signing Donyell Malen, while striker Erling Braut Haaland has been in sensational form so far.Union Berlin, on the other hand, were one of the better teams in the Bundesliga last season. Attackers like Max Kruse and Taiwo Awoniyi will be crucial this season.Borussia Dortmund should edge past Union Berlin.Prediction: Borussia Dortmund 2-1 Union Berlin