The result also ensured an unhappy start for Hoffenheim's unorthodox five-man coaching team who replaced Alfred Schreuder after his sacking on Tuesday. The hosts remain seventh on 43 points as they chase a Europa League qualifying spot.
With sports events around the world suspended because of the coronavirus pandemic, football clubs and leagues have been discussing pay cuts with players to help them make it through the crisis.
Klopp poked more fun at his poor record in one-off matches
IMAGES from the English Premier League matches played on Saturday
British media had reported that Barry had undergone a medical with French Ligue 1 champions PSG before Barcelona stepped in at the last minute and convinced him to join the ranks at La Masia.
A round-up of Wednesday's action in the UEFA Champions League.
Robin van Persie's hat-trick lifted the gloom surrounding Manchester United and manager David Moyes as the English side beat Olympiakos Piraeus 3-0 to overturn a 2-0 first-leg deficit and reach the Champions League quarter-finals on Wednesday.
Cologne, looking for their fourth straight league win, thought they had wrapped up the match played without spectators after early goals in each half.
A summary of Tuesday night's matches in the UEFA champions League.
The all-German Champions League final on Saturday pits traditional powerhouses Bayern Munich against modernists Borussia Dortmund at London's Wembley Stadium with more at stake than Europe's premier club trophy.
Klopp has led Liverpool to back-to-back Champions League finals but is adamant that their impressive recent track record does not make them the title favourites.
Belgian winger Adnan Januzaj is poised to return to Manchester United after a disappointing loan spell at Borussia Dortmund, British media reported on Wednesday.
Former Borussia Dortmund manager Juergen Klopp is expected at Anfield on Thursday as the German edges closer to becoming Brendan Rodgers' successor at Liverpool.
German fans have finally got their wish for a more exciting Bundesliga season and the title race will really hot up when leaders Bayern Munich lock horns with Borussia Dortmund on Saturday. Bayern's shock 2-1 defeat by Mainz 05 at the Allianz Arena in midweek means a home victory for second-placed Dortmund at the weekend would lift them within two points of the Bavarians with nine matches to go. Such is the worldwide interest in the top of the table clash, it will be broadcast to 208 countries. "Everyone wanted more suspense in the Bundesliga. Now you have it so all is well," Bayern coach Pep Guardiola told reporters. "We are not perfect. Sometimes you have to lose to understand what you need to do in order to become an even better team." Bayern, who are chasing a record fourth consecutive Bundesliga crown, had an 11-point lead earlier in the season. The defeat by Mainz and a 2-2 draw at Juventus in their Champions League last-16 first leg, after leading 2-0, have raised alarm bells among the supporters. "The results against Juve and Mainz were not good but our performances were," said Guardiola who is leaving at the end of the season to join Manchester City.
Juergen Klopp could not find a more fitting club to take his successful coaching career to the next level. Take a look why...
A round-up of Wednesday's night's UEFA Chmpions League matches.
Karim Benzema fired Real Madrid to a 1-0 win in the city derby against Atletico Madrid on Saturday which underlined Real's La Liga title credentials. Bayern Munich scored three goals in the opening 26 minutes to defeat Mainz 05 3-1 away on Saturday and go two points clear at the top of the Bundesliga with their sixth straight win.
Five-time European champions Liverpool are in the quarter-finals of this year's competition
Bayern Munich overcame the heartbreak of losing two finals in three seasons by beating Borussia Dortmund 2-1 in a memorable all-German Champions League final in Wembley on Saturday to become European champions for the fifth time.
Monaco's firepower was far too hot to handle for Olympique de Marseille as the Principality side moved top of the French Ligue 1 standings with a 4-0 home win on Saturday.
Real Madrid coach Jose Mourinho could not understand how his well-drilled side let Robert Lewandowski score four goals in Borussia Dortmund's 4-1 win on Wednesday but vowed that his team could still reach the Champions League final.
In an all-Spanish clash, former winners Barcelona were drawn against Atletico Madrid in the Champions League draw, while Real Madrid will take on Borussia Dortmund. Paris Saint-Germain were handed a tough draw against Chelsea.
Five images from last week's action in Europe for you to savour.
Played behind closed doors, the result lifted Hertha one place up to 10th on 34 points from 27 games while promoted Union, who won the reverse fixture in November 1-0 thanks to a late penalty, stayed 12th on 30 points.
Manchester City crushed Leeds United 7-0 at the Etihad Stadium on Tuesday to make it seven Premier League wins a row and move four points clear at the top of the table.
Borussia Dortmund defender Mats Hummels could have been facing a dressing down from coach Juergen Klopp but ended up the hero with the equaliser in Wednesday's 2-2 Champions League last-16 first-leg match.
Hertha Berlin snatched their first Bundesliga victory of 2016 on Friday, edging past Cologne 1-0 thanks to a Vedad Ibisevic goal as the visitors tightened their grip on third place.
Paris St Germain will look at playing Champions League home matches in another country after the French government on Tuesday decided to end the 2019-20 domestic season, the Ligue 1 club's president Nasser Al-Khelaifi said on Tuesday.
Bayern Munich slumped to a shock 4-1 loss at Hoffenheim in the Bundesliga on Sunday. The defeat ended their 32-match unbeaten run in all competitions stretching back to last year.
Portugal captain Cristiano Ronaldo and his Real Madrid team-mate Gareth Bale have been shortlisted for this year's coveted Ballon d'Or award.
Bayern Munich forward Robert Lewandowski was included in the German champions' squad for their Champions League semi-final, first leg at Barcelona on Wednesday despite serious facial injuries sustained last week.
The US women's national team has called on the United States Soccer Federation (USSF) to repeal a policy forbidding players from kneeling during the national anthem and issue an apology to black players and fans. The USSF will hold a special meeting on Tuesday to consider scrapping the rule, which requires players to "stand respectfully during the playing of national anthems at any event in which the Federation is represented".
Champions Bayern Munich twice needed to come from a goal down to beat hosts Augsburg 3-2 on Friday courtesy of Kingsley Coman's two goals, and cut the gap with leaders Borussia Dortmund to two points.
Images from the Champions League matches played across Europe on Tuesday.
Borussia Dortmund snatched a late goal at Atalanta to progress with a 1-1 draw, while AC Milan and Atletico Madrid, both with three-goal leads from the away legs, completed the formality of qualifying with 1-0 wins at home on Thursday.
'Black lives matter. Black culture matters. Black communities matter. We matter. #justiceforgeorgefloyd #justiceforahmaudarbery #justiceforbreonnataylor.'
Arsenal manager Mikel Arteta continues rebuilding the side around goal machine Pierre-Emerick Aubameyang and younger talents like Bukayo Saka.
Manchester United and Liverpool, English football's two most decorated clubs, were drawn together in the last 16 of the Europa League on Friday.
A summary of Tuesday's Group stage matches in the UEFA Champions League.
Van Dijk was substituted early in the game when Everton goalkeeper Jordan Pickford made a reckless challenge in the box, which left Liverpool manager Juergen Klopp fuming.