Barcelona have been haunted by their recent failures in the Champions League and there are concerning signs for the Catalans as they prepare for Tuesday's last-16 first leg away to Olympique Lyonnais.
As Barca prepare for a trip to Madrid to play Rayo Vallecano on Saturday, they are still reeling from Tuesday's 3-2 Champions League reverse at Paris St Germain, when their defence was badly exposed by the Ligue 1 title holders.
One of the most disappointing aspects of Barcelona's failure to win major silverware last season was the lack of on-field chemistry between Lionel Messi and Neymar.
Barcelona must appreciate matching the club's record of nine wins and a draw in their first 10 games of a Liga campaign, especially after Real Madrid's defeat at Girona, coach Ernesto Valverde told a news conference on Monday.
Real Madrid are set be thrown out of the Spanish King's Cup after playing banned Russian winger Denis Cheryshev in their last-32 win over Cadiz on Wednesday.
Manchester United suffered a double blow on Thursday with Daley Blind ruled out for a 'long' spell due to a knee problem and Radamel Falcao receiving a "new injury" that will keep him out for at least two more weeks.
Serge Gnabry continued his impressive scoring run for Germany, netting in second-half stoppage time for his ninth goal in his 10th international, completing Germany's eighth consecutive win over Northern Ireland.
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Bayern Munich and Barcelona registered easy wins, while Manchester United came from behind to beat CSKA Moscow 2-1 and Chelsea surrendered the top spot after a 1-1 at home against Atletico Madrid.
A summary of sports events and sports persons, who made news on Tuesday
England beat Nigeria 2-1 in a friendly on Saturday that provided some clues as to how coach Gareth Southgate will line up his still experimental side when the World Cup gets underway in two weeks' time.
With eight teams remaining at Euro 2016, a guide to the form of the quarter-finalists, looking at their strengths and weaknesses.
The ATP issued the latest men's tennis rankings on Monday and the top 10 list remains unchanged with Serbian tennis ace Novak Djokovic still leading the rankings.