Napoli are reported to have ordered an investigation into decisions taken by medics, who allowed Ospina to continue playing, and transferred him initially to the nearby San Paolo hospital where there is no neurosurgery department.
Barcelona sued Neymar for breach of contract after the 27-year-old transferred to PSG for a world record 222 million euros in 2017, less than a year after he signed a new five-year deal with the Catalan giants.
The Blues trail fourth-placed Arsenal by just three points but face a much tougher run-in than the Gunners in the remaining eight games of the Premier League season.
Juventus coach Massimiliano Allegri is confident Ronaldo will not be fined or suspended.
Sheikh Salman was strongly criticised over the case of refugee footballer Hakeem al-Araibi, whose detention in Thailand and threat of extradition to Bahrain caused an international outcry.
Ivorian Kessie, 22, and Argentina midfielder Biglia, 33, had to be pulled apart by teammates amid drama on and off the pitch.
Lyon strengthened their grip on a top-three spot with a 3-2 victory over Montpellier.
Messi's treble, his second in a month in Seville, fourth of the season and 51st of his career, moves Barca 10 points clear of Atletico Madrid with 10 games left to play.
The victory fired the Bavarians back to the top of the table.
The 30-year-old, who is on loan from Arsenal, collapsed unconscious on the pitch following a knock to the head.
Richarlison and Gylfi Sigurdsson, converting after his own saved penalty, scored the goals at Goodison Park to halt Chelsea's recent good run.
The idea was earlier rejected by UEFA and the European Club Association (ECA), to which Bayern belongs.
The Arsenal midfielder, a third-generation German, sparked controversy when he was pictured alongside Erdogan last May, raising questions about his loyalty to Germany.
The Reds now hold a two-point lead over City, but the champions have a game in hand.
Juventus had won 24 of their 27 previous matches in Serie A with three draws including 1-1 to Genoa in the reverse fixture.