An off-key Liverpool were frustrated for a second successive game by struggling opponents as they were held to a 0-0 Premier League draw at Newcastle United on Wednesday.
Atletico Madrid knocked Barcelona off the top of La Liga, for a day at least, as a second-half strike by Koke earned a 1-0 victory over a stubborn Malaga side on Saturday.
Costa has not played for Chelsea since the FA Cup final in May, following which he claims manager Antonio Conte sent him a text telling him he was not in his plans for the new season.
'The decision to let me leave was something that not only (Lionel) Messi didn't understand, but many Barcelona fans didn't, either.'
A second-string Atletico Madrid missed a penalty and had a man sent off in a 2-1 defeat at third-tier Albacete in their King's Cup last-32 first-leg match on Thursday.
Diego Forlan scrambled an early goal to give Atletico Madrid a deserved 1-0 win over a lethargic-looking Liverpool in the first leg of their Europa League semi-final on Thursday.
Chelsea's Brazil left back Filipe Luis is poised to return to Atletico Madrid after one season at Chelsea where he failed to hold down a regular first team place, Atletico president Enrique Cerezo said.
'Either you're injured, and you don't play with your club and you're not called up in the national team.'
Marco Asensio's strike earned Real Madrid a 1-0 win over Espanyol to send them top of La Liga and Thomas Lemar scored his first goal for Atletico Madrid in a 2-0 victory at Getafe on Saturday.
'You realise the fear when Barcelona could get knocked out. It would hurt UEFA a lot. I don't know what they have to do for someone to send one of them off'
Atletico Madrid stunned city rivals Real to win their 10th King's Cup. Miranda's extra-time header secured a 2-1 comeback win in an action-packed and ill-tempered clash at the Bernabeu on Friday in which Real coach Jose Mourinho and Cristiano Ronaldo were both sent off.
Atletico Madrid coach Diego Simeone praised the 'decisive' Antoine Griezmann after his two goals helped down Olympique de Marseille 3-0 in the Europa League final on Wednesday and tried to convince the striker to resist the lure of Barcelona.
'Yesterday, he trained normally, and today he's taken this decision. We have accepted it. I spoke to him this morning, and he said he was leaving, and I understood.'
Barcelona got their bid for a third consecutive La Liga title back on course when Lionel Messi and Gerard Pique struck to lift the champions to a 2-1 win at Atletico Madrid on Sunday.
Atletico Madrid substitute goalkeeper Antonio Adan saved three penalties before blasting home the winning spot-kick as the Europa League champions edged out Arsenal after the sides drew 1-1 in their International Champions Cup opener in Singapore on Thursday.
Late Griezmann strike ends Atletico's away day hoodoo
Koopmeiners leads Atalanta past Milan into Coppa semis
Barcelona were pitted against Italian champions Juventus in the Champions League quarter-final draw made on Friday to set up a repeat of the 2015 final which the Spanish side won 3-1.
Holders Barcelona crashed out of the Champions League after being stifled by a brilliantly well-organised Atletico Madrid.
The result also means second-placed Real Sociedad can reclaim top spot if they beat Eibar on Sunday.
News of all that's transpired on and off the football field
Bundesliga leaders Bayern Munich powered past third-placed Eintracht Frankfurt 4-0 with an impressive display of high-pressing football on Sunday.
Atletico Madrid put last week's painful defeat by Real Madrid behind them with a 3-0 win over Osasuna on Sunday that included two goals in the space of a minute and allowed them to return to the top four in La Liga.
Disappointed Atletico Madrid coach Diego Simeone said his players had fallen half-a-point short in a successful season after they lost the Champions League final 4-1 to city rivals Real on Saturday.
Barcelona and Atletico Madrid maintained their perfect records in La Liga while Premier League club Arsenal dropped points but returned to the top of the table.
Real Madrid's stuttering run continued as they were held 1-1 at home by La Liga minnows Eibar on Sunday, drawing a fourth consecutive game in all competitions for the first time in more than a decade.
Juventus moved closer to a third straight Serie A crown with a 1-0 victory over Bologna, Paris St Germain won the French League Cup by defeating Olympique Lyon 2-1 and Benfica clinched a first Portuguese title since 2010.
A new-look Atletico Madrid suffered a setback in their opening La Liga match of the season when they squandered several chances and twice struck the post in a 0-0 home draw with Osasuna on Sunday.
Gareth Bale would not pick any Atletico Madrid player over one of his teammates, the Real Madrid forward said, as the two Spanish sides prepare to square off in Saturday's Champions League final. Atletico's defence conceded just 18 goals last season in the league, fewer per game than any other team in Europe's top five leagues. But when Bale was asked to create an ideal 11 from both teams, he said he would pick Real Madrid players every time. Asked by radio station Cadena Cope if he would pick Atletico's Jan Oblak, who equalled the La Liga record for the fewest goals in a season, or Real's Keylor Navas, Bale said, "Keylor, 100 percent." Asked which side had the best midfield and defence, he added: "Real Madrid, everyone Real Madrid."
Whoever won, Madrid was never going to miss out on a night of celebrations.
Villarreal have agreed to sell Argentine forward Luciano Vietto to Atletico Madrid, president Fernando Roig has said.
Javi Moreno said he is considering an offer to join Bolton Wanderers on loan until the end of the season.
King's Cup holders Barcelona beat Real Sociedad 1-0 in their quarter-final first leg to end a nine-and-a-half year barren spell at home of the Basque side while Atletico Madrid crushed Eibar on Thursday.
Atletico Madrid tamed Lionel Messi and Neymar to send La Liga rivals Barcelona crashing out of the Champions League after Koke's early goal secured a shock 2-1 aggregate success at the Calderon on Wednesday.
Images from the weekend action in the Spanish League.
Two special goals lit up the Nou Camp on Tuesday as Barcelona shared a 1-1 draw with Spanish rivals Atletico Madrid. While holders Bayern Munich were held to a 1-1 draw at Manchester United.
Towering goalkeeper Thibaut Courtois, who joined Chelsea from Belgian champions Racing Genk earlier this month, is to spend this season on loan at Atletico Madrid.
Atletico Madrid took a big step towards the King's Cup semi-finals when Radamel Falcao set them on the way to a 2-0 win at home to Real Betis in their last-eight first-leg on Thursday.
Atletico Madrid forward Sergio Aguero, a target for Chelsea and Tottenham Hotspur in January, has asked the La Liga club to release him from his contract, the Argentina international said on Monday.
Morata, who had scored his first goal for the club in last week's 2-0 win over Villarreal, rose to head home from close range on the half-hour mark following a corner which had been flicked on by Atleti captain Diego Godin.