In a statement, the Liga champions said he would return on Sep. 8, meaning he will miss the game against Athletic Bilbao this weekend.
Newell's Old Boys are hopeful they can bring Lionel Messi back to the club after the 2018 World Cup in Russia, when he will have turned 31.
Ronald de Boer says Ajax goalkeeper Jasper Cillessen can compete with Marc-Andre ter Stegen for a starting place at Barcelona.
After losing 4-2 to Las Palmas on Monday, Valencia coach Pako Ayestaran has vowed to keep Shkodran Mustafi at the club despite Arsenal's interest.
Injuries have limited Gareth Bale's Real Madrid career for each of his first three seasons in Spain. That looks like changing under Zinedine Zidane.
Las Palmas snatched a shock 4-2 win over Valencia at the Mestalla as they punished their hosts on the break on Monday.