Dinamo Zagreb midfielder Arijan Ademi failed a drug test after their Champions League match against Arsenal last month and is under investigation by UEFA, the club said on Wednesday.
Rediff.com brings you the top highlights of the soccer weekend.
Juventus clinched a place in the Champions League knockout stages when a brilliant Cristiano Ronaldo assist set up Mario Mandzukic to give them a 1-0 win over Valencia on Tuesday.
Arsenal's substitutes' bench was a man short against Bayern Munich on Tuesday after the Premier League side got caught up in red tape.
Ten of the 16 sides also reached the same round two seasons ago and, as usual, the big five leagues dominate with 13 clubs hailing from either the English, Spanish, German, French and Italian leagues.
Atletico Madrid are not seeking revenge for their 2014 Champions League final defeat but instead want to write a new chapter in the club's history with their first European Cup after getting past Bayern Munich.
News of all that's transpired on and off the football field
Paris St Germain will play Borussia Dortmund and Barcelona were pitted against an unpredictable Napoli, while Chelsea were drawn against Bayern Munich. City, who will be at home in the second leg, have yet to beat the Spanish side with two draws and two defeats in their previous four meetings.
The Champions League group stages took on a less predictable look after Thursday's draw, helped by UEFA's decision to tweak the seeding system.
Stopping prolific Barcelona forwards Lionel Messi, Neymar and Luis Suarez in the Champions League final will be a formidable task, Juventus coach Massimiliano Allegri said after his side clinched their place in next month's showpiece in Berlin.
Check out the top footballers of the weekend...
Depleted Borussia Dortmund shrugged off the absence of more than half a dozen starting players to ease into the German Cup quarter-finals with a comfortable 2-0 win at third-tier Saarbruecken on Tuesday.
Zlatan Ibrahimovic bagging four goals, while Juventus and Bayern Munich preserved their leads and FA Cup holders Arsenal were dumped out of the competition.
"They have experienced players. Obviously, Lewandowski is a stand-out player, one of the best strikers in the world. We should not underestimate them." said coach Didier Deschamps.
"We wanted to commemorate the great player he was, he's a legend of Senegalese football, he made me dream and he made all of us dream so we could not mess it up on the anniversary of his death."
"We are pleased with the win, the many chances and the 70,000-plus spectators."
Juventus striker Carlos Tevez scored a second-half penalty as the hosts beat holders Real Madrid 2-1 in the Champions League semi-final, first leg, on Tuesday.
The three teams with 100 percent records in this season's Champions League can secure their places in the knockout stage this week with two games to spare.
Barcelona crashed out of the Champions League following a 3-0 defeat at Bayern Munich on Wednesday, failing to make it past the group stage of the competition for the first time since the 2000-01 season.
Cologne, looking for their fourth straight league win, thought they had wrapped up the match played without spectators after early goals in each half.
Several players from United's first-choice starting line-up, including Paul Pogba, Romelu Lukaku and Jesse Lingard, are resting after the World Cup and could miss the opening league fixture against Leicester City in less than two weeks' time.
Holders Barcelona will face fellow Spaniards Atletico Madrid, runners-up two seasons ago, in the Champions League quarter-finals following the draw in Nyon on Friday.
Here is a round-up of results from the European League matches played on Wednesday
Holders FC Barcelona have been placed in Group E, along with Bayer Leverkusen, AS Roma, Dinamo Zagreb.
News of all that's transpired on and off the football field
Zidane calls on Madrid fans to create best atmosphere ever against Bayern
Facts and figures ahead of Saturday's Champions League final between holders Real Madrid and Liverpool in Kiev:
The youngest at Euro 2020 will be Poland's Kacper Kozowski - one of two 17-year-olds in the tournament, which has never happened before.
Serbian midfielder Dusan Tadic said Zinedine Zidane had helped inspire what he described as the game of his life in Ajax Amsterdam's 4-1 drubbing of Champions League holders Real Madrid on Tuesday.
With the group standings flashing on the big screen of the Al Bayt stadium, Germany grew nervous with Musiala twice hitting the post early in the second half.
Pep Guardiola will return to the Nou Camp in the Champions League group stage after his new club Manchester City were drawn against his former Barcelona team on Thursday. The two sides were drawn in Group C alongside Borussia Moenchengladbach and former European champions Celtic in one of the toughest of the eight sections. Spanish coach Guardiola, who won the Champions League twice with Barca, faced the Catalans when he was in charge of Bayern Munich two seasons ago and suffered a 5-3 defeat in the semi-finals.
Harry Kane toppled Alan Shearer's 22-year-old record for the most Premier League goals in a calendar year by scoring a double for Tottenham Hotspur against Southampton, on Tuesday, also overtaking Lionel Messi as the top scorer in Europe.
Klopp poked more fun at his poor record in one-off matches
IMAGES from the UEFA Champions League matches played on Wednesday
A summary of Wednesday night's action in the UEFA Champions League.
The last-16 knock-out round kicks-off this week with Chelsea visiting Paris on Tuesday; Zidane to coach Real Madrid as manager in his first match in Europe
Atletico Madrid coach Diego Simeone praised his team's spirit after knocking holders Barcelona out of the Champions League.
Teenager Curtis Jones grabbed a 58th-minute winner as an injury-hit Liverpool qualified for the knockout stage of the Champions League with a 1-0 win over Ajax Amsterdam at Anfield on Tuesday.
Former Bayern Munich coach Flick takes over Germany to 2024
Andres Iniesta will always be a hero to Barcelona.
