The Bundesliga moves into round No 13 with six points separating first place from fifth place. Union Berlin are still top of the pile, but Bayern Munich could overtake the capital club.
Meanwhile, Bayer Leverkusen are attempting to move away from the relegation zone. Will it happen against Union?
Wolfsburg won four of the last six games against Mainz in all competitions ahead of Saturday’s fixture. However, the home team won both matches between these teams last season.
The Wolves are unbeaten in four straight games in the Bundesliga. They sit 12th in the league and five points ahead of the bottom three. Wolfsburg drew their last two road games in the league.
Mainz are ninth in the league and coming off a 6-2 loss to Bayern Munich. The defeat in Munich ended a two-game losing streak. Mainz are not a strong home team. They won just one of their five games at home thus far.
RB Leipzig posted a record of 4W-1D-1L against Hoffenheim in their last six meetings in all competitions. However, RB Leipzig’s most recent trip to Hoffenheim ended in a 2-0 defeat.
The Hoff are battling Leipzig for the top four and this is a six-point affair. Hoffenheim are seventh in the table with 18 points. They failed to win their last two games in the Bundesliga.
RB Leipzig are sixth in the table with 19 points. They are three points off the top four. Leipzig are unbeaten in five straight games in the Bundesliga as coach Marco Rose has the team playing their best football since Julian Nagelsmann was coach.
Union Berlin won just one of their last six games against Bayer Leverkusen. The Irons will need to win on Sunday to stay atop the Bundesliga after round 13. Bayer are 16th in the table and in the relegation-playoff place.
Xabi Alonso has won just one match since taking charge of the team. Bayer are winless in three straight league games but are coming off a Champions League matchday No 6 draw with Club Brugge. The stalemate allowed Bayer to progress to the Europa League's last 16 playoffs.
Union Berlin took 12 points from the last 18 points on offer in the league. Their road form wavered in recent matches, with two losses from the last three games away from home. Last season, Bayer and Union drew both Bundesliga matches.
Koln picked up four points from six last season versus Freiburg in the Bundesliga. The Billy Goats posted a record of 3W-1D-2L against Freiburg in the teams’ last six matches.
Freiburg go into round No 13 in third place in the league. They are on a two-game winning streak and just two points off first place.
Koln’s form has wavered in recent games. They are winless in two straight matches and sit in 10th place. Freiburg are on a two-game winning streak at home, while Koln are on a two-match losing streak away from home.