The Spanish side will hope to have him back at the soonest, given their upcoming Europa League semi-final tie against Arsenal later this month as they've progressed on aggregate despite Thursday's defeat.
The Gunners are now sixth in the Premier League with little prospect of finishing in the top four and taking one of the Champions League qualification spots.
Arsene Wenger saw his side put in a nervy showing against CSKA Moscow in their last outing on Thursday, with two late goals required in Russian Federation to put that encounter to bed. The London side won 6-3 on aggregate.
Arsenal will first play at home before the return leg at the Emirates Stadium while Atletico will host the return leg.
Police release body-camera footage with Nasim Aghdam — YouTube shooting
The officers also examine Aghdam's iphone before telling her she was going to call her father and let her go. The father asked police if his daughter planned to return home, and officers replied it did not appear so.
Driver of Hart family SUV was drunk, authorities say
They were last seen April 5 in Klamath in Del Norte County, and they were scheduled to visit a relative in San Jose last Friday. The CHP will do a complete mechanical inspection of the vehicle as part of its accident investigation.
Leafs' Nazem Kadri Delivers SAVAGE Headshot to Bruins' Tommy Wingels
Late in Game 1, Maple Leafs centre Nazem Kadri delivered a pair of hits in quick succession that landed him in trouble. Wingels did not return after the hit, and Bruins coach Bruce Cassidy said he was being evaluated.
The Spain striker was often Arsenal's bogeyman during his time at Chelsea...
Atletico are bidding to reach their third European final in four years having been runners-up in the Champions League in 2013-14 and 2015-16.