Valencia's French defender Jeremy Mathieu will join Barcelona for a fee of 20 million euros ($26.9 million), the Catalan club said on Wednesday.
Barcelona's Lionel Messi, Luis Suarez and Neymar motored past 100 goals for the season.
Koeman helped the Netherlands reach the Euro 2020 finals after they had missed the previous tournament
Barcelona midfielder Xavi will announce on Thursday he is leaving the club he joined as an 11-year-old to sign a lucrative three-year deal with Qatari side Al Sadd, his agent told Reuters on Wednesday.
Real are unbeaten since February, winning 10 of their last 12 games. In contrast, Barcelona have won just two of their previous five in all competitions and were dumped out of Europe in midweek.
Barcelona needed Luis Suarez to be at his clinical best with a hat-trick in a 3-1 comeback win at home to modest Eibar on Sunday which put the champions level on 21 points with arch-rivals Real Madrid at the top of La Liga.
The plane carrying Chapecoense to the Copa Sudamericana final, first leg against Atletico Nacional crashed into mountains outside Medellin, Colombia on November 28 after running out of fuel, killing 71 of the 77 people on board
Barcelona manager Luis Enrique believes his team deserves to win "the best league in Europe" as they aim to clinch La Liga in a potentially thrilling climax to the Spanish season on Saturday.
Barcelona's Sergi Roberto and Robert Lewandowski struck just before halftime to give the league leaders a 2-0 home win over lowly Cadiz on Sunday in their pursuit of a 27th Spanish title.
A court document released in July, alleges that Barcelona initiated negotiations in 2011 with the player, paying him 40 million euros to ensure his move when his contract with Santos expired in 2014 and thereby preventing other clubs from signing him.
Barcelona coach Luis Enrique is head strong but it appears as though he may be fighting a losing battle with the four times World Player of the Year.
Lionel Messi's father Jorge has sought to play down comments his son made this week which suggested the four-time World Player of the Year could consider leaving Barcelona.
The referee said in his match report he showed the card because Messi "delayed his return to his half of the pitch after the goal was scored with the intention of wasting time".
UEFA has thrown out protests made by Real Madrid and Barcelona against each other following their ill-tempered Champions League semi-final first leg last week.
Barcelona will lodge a second appeal against the dismissal of coach Tito Vilanova in Sunday's 2-1 win at Osasuna after the Spanish soccer federation (RFEF) rejected an initial effort and suspended the coach for two games on Wednesday.
IMAGES from the UEFA Champions League matches played on Wednesday.
Crashing out at the group stage again would be a huge blow to Barcelona's finances, whose perilous state led the club's board to sell a stake in their TV rights and agree to the sale of their audio-visual division.
Barcelona will not be complacent in the second leg of their Champions League round of 16 tie against Arsenal despite leading 2-0 from the first game in London.
First Look: FC Barcelona defender Gerrard Pique and his pop star girlfriend Shakira are expecting their first baby.
Messi, who won the Spanish La Liga title with Barcelona last season as well as the European golden boot having scored 54 goals in 58 games in all competitions, last won the award in 2015.
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.
Barcelona forward Ansu Fati will be sidelined for four months after undergoing knee surgery, the La Liga club said on Monday.
Barcelona forward Luis Suarez was included in the starting lineup for Saturday's La Liga 'Clasico' against Real Madrid, a day after his four-month ban for biting an opponent expired.
A round-up of Tuesday's action in the UEFA Champions League.
A Spanish court said on Friday it has exchanged a 21-month prison sentence handed to Soccer player Lionel Messi for tax fraud last July for a quarter-of-a-million-euro fine.
FC Tokyo have taken advantage of Barcelona's punishment for breaching rules on the transfer of young players by swooping to bring home a 13-year-old player dubbed the 'Japanese Messi'.
Rediff.com brings these and other big news from the sporting world, encapsulated in this photo feature...
Barcelona will meet Manchester United in the Champions League quarter-finals following the draw on Friday while Manchester City face Tottenham Hotspur in an all-Premier League clash.
The following is the draw for the Champions League last 16 which was held in Nyon on Monday:
Real Madrid thrashed arch-rivals and league leaders Barcelona 4-0 to reach the Copa del Rey final
Wright blasts Man City's Haaland for throwing ball at Arsenal's Gabriel
Google CEO Sundar Pichai hailed Lionel Messi as the 'best ever'
IMAGES from the Champions League quarter-final played between Barcelona and Bayern Munich in Lisbon on Friday.
IMAGES from the Champions League matches played on Wednesday.
Barcelona coach Luis Enrique defended his team's integrity on Friday after a week in which his players were criticised by the highest powers in Spanish soccer following last week's dramatic 3-2 win at Valencia.
Indian Super League team Delhi Dynamos FC has been invited to be a part of the World Soccer Congress in Shanghai, China. Delhi Dynamos FC President Prashant Agarwal has been invited to be a guest speaker for the forum in the presence of representatives from FC Barcelona, FC Inter Milan, La Liga, Liga Portugal, Manchester United, French Football Federation and Italian Football Federation. "I feel absolutely elated to have been invited to speak at the World Soccer Congress. Indian football is an expanding and a progressive industry, the world is watching us and we at Delhi Dynamos FC believe in rising to the occasion," Agarwal said in a release. Agarwal is the sole Indian club representative on the list of the invitees, the release added. He is scheduled to speak on the growing football industry in India and on successfully running Delhi Dynamos FC during season 2 of the Indian Super League.
Real Madrid trimmed Barcelona's lead at the top of La Liga to one point when they recovered from conceding an early goal to secure a stirring 3-1 comeback win in the 'Clasico' on Saturday.
'Barca is a great club that has to win the Champions League, that's why I came here.'
Round-up of football matches played around Europe on Saturday.
Barcelona would not be allowed to play in La Liga if Catalonia broke away from Spain, the country's football league chief Javier Tebas said as tensions mounted in the region over the possibility of an independence referendum next month.
