Union Berlin will entertain second-tier side Heidenheim at the Stadion An der Alten Försterei in DFB-Pokal second round on Wednesday (October 19).The hosts kicked off their campaign on a solid note, finding themselves at the top of the Bundesliga standings after ten games. They're coming off a 2-0 home win over Borussia Dortmund at home on Sunday to go four points clear of second-placed reigning champions Bayern Munich.Berlin overcame Chemnitzer 2-1 in the first round after extra time. Theoson Siebatcheu equalised two minutes after Chemnitzer scored before Kevin Behrens scored the winner in the second half of extra time.Heidenheim, meanwhile, have had just one win in their last five 2.Bundesliga games. They suffered just their second defeat of the campaign when they went down 3-1 at Holstein Kiel on Sunday.They secured their place in the second round of the DFB-Pokal, thanks to a 2-0 win over fourth-tier side FV Illertissen.The DFB-Pokal@DFBPokal_ENThe dates and times for the second round of the #DFBPokal have been announced ✍️#BERLIN20234616The dates and times for the second round of the #DFBPokal have been announced 📆✍️#BERLIN2023 https://t.co/QeFYE3Z38iUnion Berlin vs Heidenheim Head-to-Head and Key NumbersThe two teams have crossed paths 11 times acrosscompetitions, with all but one of these meetings taking place in the 2.Bundesliga. This will be their second meeting in the DFB Pokal.Heidenheim have a better record against the hosts, with six wins, while Berlin have picked up three wins. Only two meetings between them have ended in 1-1 draws.The hosts are winless against Heidenheim since 2016, losing four games and playing out two draws.There have been under 2.5 goals scored in Heidenheim's last three games in the DFB Pokal.Berlin have seen under 2.5 goals in their last four home games against Heidenheim across competitions.Union Berlin vs Heidenheim PredictionDie Eisernen are on a four-game winning streak acrosscompetitions, with the games producing less than 2.5 goals, keeping clean sheets in all of them. While they have been second-best against the visitors, their current form makes them the favourites here.1. FC Union Berlin@fcunion_enPre-match preview of our cup tie tomorrow at home to Heidenheim is now online. bit.ly/3eF398N4Pre-match preview of our cup tie tomorrow at home to Heidenheim is now online. bit.ly/3eF398NThe visitors, meanwhile, have just one win in their last five games and might struggle. Given the form of the surprise Bundesliga leaders, they should eke out a narrow win.Prediction: Union Berlin 2-1 Heidenheim$1,000 Risk-Free Bet at FanDuel SBUnion Berlin vs Heidenheim Betting TipsTip 1: Result - Union BerlinTip 2: Goals - Over/Under 2.5 Goals - Over 2.5Tip 3: At least a goal to be scored in the second half - YesTip 4: Berlin to score first - YesTip 5: Jordan Siebatcheu to score or assist any time - Yes