It's all square in the capital after Kimmich cancelled out Becker's early goal. Union have given little away, and will be quietly confident they can get at least a draw. Nagelsmann may already be thinking about making changes.

The ball's rolling in Berlin. Union are in red and white stripes, Bayern in navy blue with red flashes.

The players gather around the centre circle in an act of remembrance, 50 years on from the terrorist attack on the Israeli Olympic team at the 1972 Munich games.

Superb atmosphere as the teams take to the field in Köpenick. The winner - if there is one - will go top of the Bundesliga!

The 22,000 home fans belt the out club's anthem, 'Eisern Union', or 'Iron Union'. Remarkable to think this is still only their fourth Bundesliga season. Feels like they've been around a lot longer.

Bayern have averaged 61 percent possession in their Bundesliga matches so far this season and have completed 88.7 percent of their passes from open play. Little wonder they have only allowed opposing teams a league-low 34 shots at goal this term.

Union are the only Bundesliga team not to fall behind in a game this season. What's more, they've won a league-best 120 aerial duels, covered more ground than anyone else (72.4 miles per game) and also committed more fouls than any other team (59).

The hosts have made four changes to the team that hammered Schalke last weekend. Behrens, Schaefer, Trimmel and Jaeckel come in for Jordan, Haberer, Gießelmann and Leite. USMNT international, Jordan, is sidelined with a muscular issue.

Bayern boss Julian Nagelsmann has almost a full squad at his disposal today and Union will have to deal with an attacking quartet that will surely have the visitors sweating this afternoon. Coman, Musiala and Sane will look to interchange with Mane as the record champions look to add to their 16-goal haul.

Grill, Gießelmann, Puchacz, Öztunali, Seguin, Haraguchi, Michel, Pantovic, Lewelling

Rönnow - Doekhi, Knoche, Jaeckel - Trimmel (c), Thorsby, Khedira, Schäfer, Ryerson - Becker, Behrens

Ulreich, Gnabry, Goretzka, Choupo-Moting, Hernandez, Müller, Gravenberch, Mazraoui, Stanisic

Neuer - Pavard, Upamecano, de Ligt, Davies - Kimmich, Sabitzer - Coman, Musiala, Sane - Mane

Despite finishing fifth last season and having already accounted for Leipzig in 2022/23, top-four murmurs are being brushed aside in the Union camp. "Our first goal is [remaining in] the Bundesliga," said top scorer Sheraldo Becker. "We want to show everybody we are a team, we are stable [and that] we're here to stay."

Fischer is without defender Diogo Leite, so Paul Jaeckel should come in in the only change to the Schalke romp. Julian Nagelsmann made a number changes in midweek, and is expected to recall the likes of Manuel Neuer, Benjamin Pavard, Alphonso Davies and Marcel Sabitzer. Mathys Tel, who became Bayern's youngest ever goalscorer, aged 17 years and 126 days old, misses out with a knock.

"Bayern have a lot of players that are extremely quick, players that can decide a game. It will take courage, both with and without the ball. But we're not thinking about a top-of-the-table clash, we just want to play as well as we can."

"Union have developed well, playing direct football to their two strikers. It's a great stadium with amazing fans. We're going to try our best to compete. It's challenging to play there, but doable. And we will make changes after the cup game."

Bayern are unbeaten in their six Bundesliga meetings with Union (W4, D2). They are the only team to have recorded two Bundesliga away wins at the fortress Alten Försterei.

Union have made a flying start to 2022/23, beating Hertha (3-1), Leipzig (2-1) and Schalke (6-1), whilst drawing 0-0 with Mainz. Bayern were held to a 1-1 draw by Gladbach last time out, after posting wins over Frankfurt (6-1), Wolfsburg (2-0) and Bochum (7-0).

These are heady days for Union Berlin! Urs Fischer's side are level on 10 points with Bayern Munich going into Matchday 5, and will go top with a win. Stay tuned!