Jurgen Klopp revealed Liverpool defender Joel Matip suffered a "only a little tear" in his thigh muscle in Sunday's friendly against Borussia Dortmund.
The centre-back was withdrawn midway through the first half of his side's 3-1 defeat in the International Champions Cup clash in Charlotte.
The sight of Matip limping off sparked fears he had suffered a reoccurrence of the thigh injury which ruled him out of the latter stages of the 2017-18 season, including the Champions League final.
While Klopp confirmed that was not the case, the German conceded the severity of the setback was unclear at this stage.
"It's not the same injury, it's another muscle, but it's a muscle, obviously. It looks like, hopefully, only a little tear," the Liverpool manager said.
"We cannot say more about this now, but that's of course the most negative thing about the day. It's not cool.
"These things can happen but you don't want them to happen. Maybe tomorrow or the day after tomorrow, we will know more. At this moment we only know that it was too painful to carry on."
Matip's fitness is a concern ahead of the new season, with Liverpool hosting West Ham in their Premier League opener on August 12.
Klopp was more upbeat over Daniel Sturridge, however, as the forward impressed in his 45-minute outing against Dortmund.
The Reds boss suggested the 28-year-old, who spent the second half of last season on loan at West Brom, still has an important role to play at Anfield.
"Who doubts Daniel Sturridge when he is fit? I don't. Outstanding player, hopefully he can stay fit and then the future is bright," Klopp said.
"He's young enough, it’s not like he's 30-something. He’s still in his 20s, so that's good. He’'s experienced as well, and has this kind of natural arrogance on the pitch which is good.
"If he tries something and it doesn't come off, he is not out of the game for 10 minutes. He stays in the game, and it is good for us to have him around."
20 de agosto 2018
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19 de agosto 2018
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|Hughton: Shock United win does not alter scale of Brighton´s task|
|Navas keeps place as Courtois waits on Madrid debut|
|Ndidi signs long-term Leicester City contract|
|Pandya tears through feeble England to put India in command|
|Alonso creates motorsport history with victory at Silverstone|
|Kovacic: Chelsea and Sarri believe in me|
|Brighton loss a big lesson for United – Pogba|
|Mistakes hit United´s confidence - Mourinho|
|Brighton and Hove Albion 3 Manchester United 2: Murray lifts Seagulls to another win over Mourinho|
|Quickfire Moon treble sets up Rhinos win|
|Manchester City celebrate win with Silva´s son|
|Brentford 2 Sheffield Wednesday 0: Maupay stars as Bees buzz by Owls|
|Guardiola delighted with fit and firing Aguero|
|Waring marks 200th event with maiden title in Gothenburg|
|Guardiola dismisses Mourinho´s ´disrespectful´ accusation|
|Hulkenberg proud to survive in F1´s pay driver era|
|It´s here, it´s real, get on with it - Dyche dismisses Europa League excuse|
|Grujic agrees Liverpool extension, joins Hertha on loan|
|Martial starts as Lukaku, Young return for Manchester United|
|Fury-Wilder to be staged in November or December - Warren|
|Manchester City 6 Huddersfield Town 1: Aguero hits hat-trick as champions triumph|
|Burnley 1 Watford 3: Hornets end away day woes as Deeney leads destructive display|
|McFarland cleared to leave Scotland and join Ulster|
|Simeone wants ´only the best´ for Filipe Luis amid PSG links|
|PSG signing Boateng rated ´50-50´ by Bayern president|
|Cipriani a positive influence, insists Gloucester head coach|
|Bayer Leverkusen´s Bailey signs contract extension|
|Jesus and Aguero start for City as Mahrez misses out|
|Federer unsure what to expect from Djokovic duel|
|Chievo goalkeeper suffers broken nose, whiplash in Ronaldo collision|
|Simmons lauds influence of ´big brother´ LeBron|
|PSG´s Cavani selected by Uruguay as Coito fills in for Tabarez|
|Starc leads tributes after ´leader of the pack´ Johnson retires|
|Hazard confirms he is staying at Chelsea this month|
|Liverpool´s Firmino dreaming of Premier League title glory|
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|Erasmus demands improved Springboks|
|Athletics pull even with Astros in AL West|
|Mercurial quick Johnson retires from cricket|
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|Crotty concussed, Folau injured|
|DFB president Grindel sorry Ozil felt ´deserted´|
|Busch picks up first win of season in Night Race|
|NASCAR results at Bristol: Kurt Busch picks up first win of season in Night Race|
|Woakes welcomes back ´big-game player´ Stokes|
|´Genius´ Messi still amazes Valverde|
|All Blacks, Springboks await Namibia at Rugby World Cup|
|Federer to face Djokovic after Goffin withdraws|
|Rain halts plays at Wyndham Championship|
|De Gea will extend contract soon, says Mourinho|
|Halep to meet Bertens in Cincinnati final|
|Frampton set for Warrington fight after dominant Windsor Park win|
|Messi makes LaLiga history with Barcelona´s 6000th goal|
|MC Alger defeat throws quarter-final chase wide open|
|Barcelona 3 Deportivo Alaves 0: Messi´s milestone goal sets up victory|
18 de agosto 2018
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|Championship Review: West Brom crush QPR as Leeds stay perfect|
|Allegri pleased with Ronaldo despite goalless Juventus debut|
|Chelsea can produce magic with Sarri in charge - Hazard|
|Emery ´happy without the result´ as Arsenal comeback falls short|
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