FC Augsburg v VfB Stuttgart
Martin Harnik scored a brace in Stuttgart's 2-1 win in the reverse fixture, Tobias Werner replied for Augsburg with his only Bundesliga goal to date.
Stuttgart have won each of their last three competitive games against Augsburg.
VfB are unbeaten in seven Bundesliga games (five wins, two draws), Dortmund (23 games) being the only team with a longer unbeaten run in the league.
Augsburg's unbeaten run of six games (their longest ever in the top flight) came to an end when they lost 2-1 at Bayern Munich last weekend.
Augsburg are unbeaten in a club record eight Bundesliga home games (five wins, three draws) and have kept a clean sheet in five of those games.
Stuttgart have already scored 29 games in 2012, six more than in the entire first half of the season. Dortmund (31) are the only team that have scored more goals in 2012 than VfB (29).
Winter signing Ja-Cheol Koo (four goals) is Augsburg's top goal-scorer in 2012.
Stuttgart's winter signing Vedad Ibisevic has scored seven goals and set up an additional four in 2012.
Stuttgart's Martin Harnik (eight goals in 2012) has failed to score in his last five appearances, though.
Alex Bellinghausen, set to leave Augsburg for Fortuna Düsseldorf in the summer, has set up three of Augsburg's last five goals.
SV Werder Bremen v Borussia Mönchengladbach
Borussia won the reverse fixture 5-0, their biggest Bundesliga win in the last 17 years, with Marco Reus bagging a hat-trick in the game.
Bremen haven't lost any of their last 21 Bundesliga home games against Mönchengladbach (16 wins, five draws).
Both teams have won just one of their last seven league matches.
Werder have celebrated just one home win in 2012 (3-0 over Hanover on matchday 25). In the first half of the season, Werder won seven out of eight home games.
Gladbach have conceded just 20 goals, as many as in the 1969/70 season when they won the league. Bayern (19) are the only team with a better defensive record.
Borussia haven't conceded a goal before half-time in their last 14 league games, but have scored twelve first-half goals themselves in that period.
Gladbach's Tony Jantschke could make his 50th Bundesliga appearance in this match.
Borussia have scored 996 away goals in the top flight.
Claudio Pizarro has scored six goals against Gladbach in seven Bundesliga games for Bremen, but none in nine games against Gladbach for Bayern Munich.
Werder's Marko Marin started his Bundesliga career in Mönchengladbach, scoring four goals and setting up another eleven in 37 Bundesliga games between 2007 and 2009.
Since Reus joined Borussia in 2009, Gladbach have picked up just one point from the five games Reus has missed.
Hertha BSC v SC Freiburg
Freiburg have won just two of their 15 Bundesliga games against Hertha (five draws, eight defeats), while Hertha have averaged 1.93 points per game against Freiburg, more than against any other current Bundesliga club.
Freiburg have won just one of their last nine Bundesliga games against Hertha (three draws, five defeats), on their last visit to the Olympic Stadium (September 2009) Freiburg won 4-0.
Hertha coach Otto Rehhagel has won five out of nine Bundesliga games against Freiburg (and lost four), but his last three duels with Freiburg have all ended in defeat (all with Kaiserslautern).
Freiburg are unbeaten in six games, picking up 14 out of a possible 18 points for the first time since 2000/01 when they finished sixth.
Hertha have failed to score in four out of seven games under Otto Rehhagel. Kaiserslautern (five) are the only team that has scored fewer goals in 2012 than Hertha (six).
Freiburg have scored at least two goals in each of their last four Bundesliga games, their second-best run in Bundesliga history (six games in a row in 1994/95).
Hertha are yet to score a goal from a set-piece since Rehhagel took over. Their last goal from a set-piece came at the end of 2011 (Roman Hubnik on matchday 17).
Freiburg came back from two goals down to secure a 2-2 draw against Nürnberg at the weekend, for the first time since the reverse fixture against Hertha (2-2).
16 different players have scored Bundesliga goals for Freiburg this season, a league high.
Rehhagel and Freiburg coach Christian Streich have crossed swords once before. Streich played for FC Homburg in March 1990 when they travelled to Rehhagel's Werder Bremen, coming away with a goalless draw.
Hertha's Levan Kobiashvili made his Bundesliga debut for Freiburg, and so did team-mate Felix Bastians.
1. FSV Mainz 05 v 1. FC Köln
These teams have met in the Bundesliga teams seven times, with the home team winning six of those matches. The reverse fixture ended 1-1.
These teams have faced each other 18 times in all competitions, with the away team winning just two of these games (both teams once).
This will be Mainz's 200th Bundesliga game, with Nicolke Noveski having made an appearance in 177 of the first 199.
Mainz have lost just one of their last eight home games (five wins, two draws), while Cologne have lost eight of their last eleven away games (one win, two draws).
Mainz have dropped 28 points from winning positions this season, more than any other team.
Cologne have conceded 59 goals this season, more than any other team.
Cologne have attempted a league-low 8.8 shots per game and conceded a league-high 15.9 shots per game.
Cologne have conceded a league-high 35 goals after the break, Mainz have the second-worst record with 31.
Mainz have lost a league-high six games from a winning position, Cologne (four) have the second-worst record in that regard.
Just two teams have scored more goals on the counter-attack than Cologne (nine), Mainz (seven) are in fourth place.
Mainz are the only team to score in all 12 games in 2012, they would set a new club record if they could stretch that run to 13.
Mainz player Zdenek Pospech played three years under Cologne coach Stale Solbakken (at Copenhagen).
